- 27 Aug, 2020 40 commits
-
-
Christophe JAILLET authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 36f28f76 ] Update the size used in 'dma_free_coherent()' in order to match the one used in the corresponding 'dma_alloc_coherent()', in 'spider_net_init_chain()'. Fixes: d4ed8f8d ("Spidernet DMA coalescing") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Sasha Levin <sashal@kernel.org> Signed-off-by:
Khalid Elmously <khalid.elmously@canonical.com> Signed-off-by:
Ian May <ian.may@canonical.com> Signed-off-by:
Kelsey Skunberg <kelsey.skunberg@canonical.com>
-
Wang Hai authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 20e64213 ] wl1251_event_ps_report() should not always return 0 because wl1251_ps_set_mode() may fail. Change it to return 'ret'. Fixes: f7ad1eed ("wl1251: retry power save entry") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Wang Hai <wanghai38@huawei.com> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200730073939.33704-1-wanghai38@huawei.comSigned-off-by:
-
Julian Wiedmann authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 02472e28 ] Discard events that don't contain any entries. This shouldn't happen, but subsequent code relies on being able to use entry 0. So better be safe than accessing garbage. Fixes: b4d72c08 ("qeth: bridgeport support - basic control") Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by:
Alexandra Winter <wintera@linux.ibm.com> Signed-off-by:
-
Tom Rix authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit ccf193de ] clang static analysis flags this error 88pm860x_battery.c:522:19: warning: Assigned value is garbage or undefined [core.uninitialized.Assign] info->start_soc = soc; ^ ~~~ soc is set by calling calc_soc. But calc_soc can return without setting soc. So check the return status and bail similarly to other checks in pm860x_init_battery and initialize soc to silence the warning. Fixes: a830d28b ("power_supply: Enable battery-charger for 88pm860x") Signed-off-by:
Tom Rix <trix@redhat.com> Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by:
-
Dan Carpenter authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 42a2df3e ] We have an upper bound on "maplevel" but forgot to check for negative values. Fixes: e114e473 ("Smack: Simplified Mandatory Access Control Kernel") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Casey Schaufler <casey@schaufler-ca.com> Signed-off-by:
-
Dan Carpenter authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit a6bd4f6d ] This is similar to commit 84e99e58 ("Smack: slab-out-of-bounds in vsscanf") where we added a bounds check on "rule". Reported-by: syzbot+a22c6092d003d6fe1122@syzkaller.appspotmail.com Fixes: f7112e6c ("Smack: allow for significantly longer Smack labels v4") Signed-off-by:
-
Finn Thain authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit edd7dd22 ] Booting Linux with a Conner CP3200 drive attached to the MESH SCSI bus results in EH measures and a panic: [ 25.499838] mesh: configured for synchronous 5 MB/s [ 25.787154] mesh: performing initial bus reset... [ 29.867115] scsi host0: MESH [ 29.929527] mesh: target 0 synchronous at 3.6 MB/s [ 29.998763] scsi 0:0:0:0: Direct-Access CONNER CP3200-200mb-3.5 4040 PQ: 0 ANSI: 1 CCS [ 31.989975] sd 0:0:0:0: [sda] 415872 512-byte logical blocks: (213 MB/203 MiB) [ 32.070975] sd 0:0:0:0: [sda] Write Protect is off [ 32.137197] sd 0:0:0:0: [sda] Mode Sense: 5b 00 00 08 [ 32.209661] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 32.332708] sda: [mac] sda1 sda2 sda3 [ 32.417733] sd 0:0:0:0: [sda] Attached SCSI disk ... snip ... [ 76.687067] mesh_abort((ptrval)) [ 76.743606] mesh: state at (ptrval), regs at (ptrval), dma at (ptrval) [ 76.810798] ct=6000 seq=86 bs=4017 fc= 0 exc= 0 err= 0 im= 7 int= 0 sp=85 [ 76.880720] dma stat=84e0 cmdptr=1f73d000 [ 76.941387] phase=4 msgphase=0 conn_tgt=0 data_ptr=24576 [ 77.005567] dma_st=1 dma_ct=0 n_msgout=0 [ 77.065456] target 0: req=(ptrval) goes_out=0 saved_ptr=0 [ 77.130512] mesh_abort((ptrval)) [ 77.187670] mesh: state at (ptrval), regs at (ptrval), dma at (ptrval) [ 77.255594] ct=6000 seq=86 bs=4017 fc= 0 exc= 0 err= 0 im= 7 int= 0 sp=85 [ 77.325778] dma stat=84e0 cmdptr=1f73d000 [ 77.387239] phase=4 msgphase=0 conn_tgt=0 data_ptr=24576 [ 77.453665] dma_st=1 dma_ct=0 n_msgout=0 [ 77.515900] target 0: req=(ptrval) goes_out=0 saved_ptr=0 [ 77.582902] mesh_host_reset [ 88.187083] Kernel panic - not syncing: mesh: double DMA start ! [ 88.254510] CPU: 0 PID: 358 Comm: scsi_eh_0 Not tainted 5.6.13-pmac #1 [ 88.323302] Call Trace: [ 88.378854] [e16ddc58] [c0027080] panic+0x13c/0x308 (unreliable) [ 88.446221] [e16ddcb8] [c02b2478] mesh_start.part.12+0x130/0x414 [ 88.513298] [e16ddcf8] [c02b2fc8] mesh_queue+0x54/0x70 [ 88.577097] [e16ddd18] [c02a1848] scsi_send_eh_cmnd+0x374/0x384 [ 88.643476] [e16dddc8] [c02a1938] scsi_eh_tur+0x5c/0xb8 [ 88.707878] [e16dddf8] [c02a1ab8] scsi_eh_test_devices+0x124/0x178 [ 88.775663] [e16dde28] [c02a2094] scsi_eh_ready_devs+0x588/0x8a8 [ 88.843124] [e16dde98] [c02a31d8] scsi_error_handler+0x344/0x520 [ 88.910697] [e16ddf08] [c00409c8] kthread+0xe4/0xe8 [ 88.975166] [e16ddf38] [c000f234] ret_from_kernel_thread+0x14/0x1c [ 89.044112] Rebooting in 180 seconds.. In theory, a panic can happen after a bus or host reset with dma_started flag set. Fix this by halting the DMA before reinitializing the host. Don't assume that ms->current_req is set when halt_dma() is invoked as it may not hold for bus or host reset. BTW, this particular Conner drive can be made to work by inhibiting disconnect/reselect with 'mesh.resel_targets=0'. Link: https://lore.kernel.org/r/3952bc691e150a7128b29120999b6092071b039a.1595460351.git.fthain@telegraphics.com.au Fixes: 1da177e4 ("Linux-2.6.12-rc2") Cc: Paul Mackerras <paulus@ozlabs.org> Reported-and-tested-by:
Stan Johnson <userm57@yahoo.com> Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
-
Marek Szyprowski authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 33a06f13 ] When gadget registration fails, one should not call usb_del_gadget_udc(). Ensure this by setting gadget->udc to NULL. Also in case of a failure there is no need to disable low-level hardware, so return immiedetly instead of jumping to error_init label. This fixes the following kernel NULL ptr dereference on gadget failure (can be easily triggered with g_mass_storage without any module parameters): dwc2 12480000.hsotg: dwc2_check_params: Invalid parameter besl=1 dwc2 12480000.hsotg: dwc2_check_params: Invalid parameter g_np_tx_fifo_size=1024 dwc2 12480000.hsotg: EPs: 16, dedicated fifos, 7808 entries in SPRAM Mass Storage Function, version: 2009/09/11 LUN: removable file: (no medium) no file given for LUN0 g_mass_storage 12480000.hsotg: failed to start g_mass_storage: -22 8<--- cut here --- Unable to handle kernel NULL pointer dereference at virtual address 00000104 pgd = (ptrval) [00000104] *pgd=00000000 Internal error: Oops: 805 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.8.0-rc5 #3133 Hardware name: Samsung Exynos (Flattened Device Tree) Workqueue: events deferred_probe_work_func PC is at usb_del_gadget_udc+0x38/0xc4 LR is at __mutex_lock+0x31c/0xb18 ... Process kworker/0:1 (pid: 12, stack limit = 0x(ptrval)) Stack: (0xef121db0 to 0xef122000) ... [<c076bf3c>] (usb_del_gadget_udc) from [<c0726bec>] (dwc2_hsotg_remove+0x10/0x20) [<c0726bec>] (dwc2_hsotg_remove) from [<c0711208>] (dwc2_driver_probe+0x57c/0x69c) [<c0711208>] (dwc2_driver_probe) from [<c06247c0>] (platform_drv_probe+0x6c/0xa4) [<c06247c0>] (platform_drv_probe) from [<c0621df4>] (really_probe+0x200/0x48c) [<c0621df4>] (really_probe) from [<c06221e8>] (driver_probe_device+0x78/0x1fc) [<c06221e8>] (driver_probe_device) from [<c061fcd4>] (bus_for_each_drv+0x74/0xb8) [<c061fcd4>] (bus_for_each_drv) from [<c0621b54>] (__device_attach+0xd4/0x16c) [<c0621b54>] (__device_attach) from [<c0620c98>] (bus_probe_device+0x88/0x90) [<c0620c98>] (bus_probe_device) from [<c06211b0>] (deferred_probe_work_func+0x3c/0xd0) [<c06211b0>] (deferred_probe_work_func) from [<c0149280>] (process_one_work+0x234/0x7dc) [<c0149280>] (process_one_work) from [<c014986c>] (worker_thread+0x44/0x51c) [<c014986c>] (worker_thread) from [<c0150b1c>] (kthread+0x158/0x1a0) [<c0150b1c>] (kthread) from [<c0100114>] (ret_from_fork+0x14/0x20) Exception stack(0xef121fb0 to 0xef121ff8) ... ---[ end trace 9724c2fc7cc9c982 ]--- While fixing this also fix the double call to dwc2_lowlevel_hw_disable() if dr_mode is set to USB_DR_MODE_PERIPHERAL. In such case low-level hardware is already disabled before calling usb_add_gadget_udc(). That function correctly preserves low-level hardware state, there is no need for the second unconditional dwc2_lowlevel_hw_disable() call. Fixes: 207324a3 ("usb: dwc2: Postponed gadget registration to the udc class driver") Acked-by:
Minas Harutyunyan <hminas@synopsys.com> Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
Felipe Balbi <balbi@kernel.org> Signed-off-by:
-
Xiongfeng Wang authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 3167e3d3 ] When I cat ASPM parameter 'policy' by sysfs, it displays as follows. Add a newline for easy reading. Other sysfs attributes already include a newline. [root@localhost ~]# cat /sys/module/pcie_aspm/parameters/policy [default] performance powersave powersupersave [root@localhost ~]# Fixes: 7d715a6c ("PCI: add PCI Express ASPM support") Link: https://lore.kernel.org/r/1594972765-10404-1-git-send-email-wangxiongfeng2@huawei.comSigned-off-by:
Xiongfeng Wang <wangxiongfeng2@huawei.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
-
Milton Miller authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit a9f675f9 ] The code in vdso_cpu_init that exposes the cpu and numa node to userspace via SPRG_VDSO incorrctly masks the cpu to 12 bits. This means that any kernel running on a box with more than 4096 threads (NR_CPUS advertises a limit of of 8192 cpus) would expose userspace to two cpu contexts running at the same time with the same cpu number. Note: I'm not aware of any distro shipping a kernel with support for more than 4096 threads today, nor of any system image that currently exceeds 4096 threads. Found via code browsing. Fixes: 18ad51dd ("powerpc: Add VDSO version of getcpu") Signed-off-by:
Milton Miller <miltonm@us.ibm.com> Signed-off-by:
Anton Blanchard <anton@linux.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200715233704.1352257-1-anton@ozlabs.orgSigned-off-by:
-
Dan Carpenter authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit e1869678 ] The length of the key comes from the network and it's a 16 bit number. It needs to be capped to prevent a buffer overflow. Fixes: 5e6e3a92 ("wireless: mwifiex: initial commit for Marvell mwifiex driver") Signed-off-by:
Ganapathi Bhat <ganapathi.bhat@nxp.com> Signed-off-by:
-
Laurent Pinchart authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit a6ae2fe5 ] The LG LB070WV8 panel incorrectly reports a 16 bits per component value, while the panel uses 8 bits per component. Fix it. Fixes: dd015002 ("drm/panel: simple: Add support for LG LB070WV8 800x480 7" panel") Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200711225317.28476-1-laurent.pinchart+renesas@ideasonboard.comSigned-off-by:
-
Chuhong Yuan authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 18ffec75 ] fimc_md_get_pinctrl() misses a check for pinctrl_lookup_state(). Add the missed check to fix it. Fixes: 4163851f ("[media] s5p-fimc: Use pinctrl API for camera ports configuration]") Signed-off-by:
Chuhong Yuan <hslester96@gmail.com> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by:
-
Dan Carpenter authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 2505a210 ] If fw_csr_string() returns -ENOENT, then "name" is uninitialized. So then the "strlen(model_names[i]) <= name_len" is true because strlen() is unsigned and -ENOENT is type promoted to a very high positive value. Then the "strncmp(name, model_names[i], name_len)" uses uninitialized data because "name" is uninitialized. Fixes: 92374e88 ("[media] firedtv: drop obsolete backend abstraction") Signed-off-by:
-
Christophe JAILLET authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 86f2da11 ] The dev_id used in request_irq() and free_irq() should match. Use 'info' in both cases. Link: https://lore.kernel.org/r/20200626040553.944352-1-christophe.jaillet@wanadoo.fr Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
-
Christophe JAILLET authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit d179f7c7 ] The dev_id used in request_irq() and free_irq() should match. Use 'info' in both cases. Link: https://lore.kernel.org/r/20200626035948.944148-1-christophe.jaillet@wanadoo.fr Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
-
Colin Ian King authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 7ee78aff ] There is an off-by-one bounds check on the index into arrays table->mc_reg_address and table->mc_reg_table_entry[k].mc_data[j] that can lead to reads and writes outside of arrays. Fix the bound checking off-by-one error. Addresses-Coverity: ("Out-of-bounds read/write") Fixes: cc8dbbb4 ("drm/radeon: add dpm support for CI dGPUs (v2)") Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
-
Christophe JAILLET authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 040ab9c4 ] The dev_id used in request_irq() and free_irq() should match. Use 'info' in both cases. Link: https://lore.kernel.org/r/20200625204730.943520-1-christophe.jaillet@wanadoo.fr Fixes: 1da177e4 ("Linux-2.6.12-rc2") Acked-by:
Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
-
Chuhong Yuan authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit dc7690a7 ] preview_init_entities() does not call v4l2_ctrl_handler_free() when it fails. Add the missed function to fix it. Fixes: de1135d4 ("[media] omap3isp: CCDC, preview engine and resizer") Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
-
Arnd Bergmann authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 985b1f59 ] clang points out that doing arithmetic between diffent enums is usually a mistake: drivers/leds/leds-lm355x.c:167:28: warning: bitwise operation between different enumeration types ('enum lm355x_tx2' and 'enum lm355x_ntc') [-Wenum-enum-conversion] reg_val = pdata->pin_tx2 | pdata->ntc_pin; ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ drivers/leds/leds-lm355x.c:178:28: warning: bitwise operation between different enumeration types ('enum lm355x_tx2' and 'enum lm355x_ntc') [-Wenum-enum-conversion] reg_val = pdata->pin_tx2 | pdata->ntc_pin | pdata->pass_mode; ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ In this driver, it is intentional, so add a cast to hide the false-positive warning. It appears to be the only instance of this warning at the moment. Fixes: b98d13c7 ("leds: Add new LED driver for lm355x chips") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Pavel Machek <pavel@ucw.cz> Signed-off-by:
-
Tomasz Duszynski authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit df16c33a ] IIO_CONCENTRATION together with INFO_RAW specifier is used for reporting raw concentrations of pollutants. Raw value should be meaningless before being properly scaled. Because of that description shouldn't mention raw value unit whatsoever. Fix this by rephrasing existing description so it follows conventions used throughout IIO ABI docs. Fixes: 8ff6b3bc ("iio: chemical: Add IIO_CONCENTRATION channel type") Signed-off-by:
Tomasz Duszynski <tomasz.duszynski@octakon.com> Acked-by:
Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by:
-
Dejin Zheng authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit fd4b8243 ] A call of the function do_take_over_console() can fail here. The corresponding system resources were not released then. Thus add a call of iounmap() and release_mem_region() together with the check of a failure predicate. and also add release_mem_region() on device removal. Fixes: e86bb8ac ("[PATCH] VT binding: Make newport_con support binding") Suggested-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by:
Dejin Zheng <zhengdejin5@gmail.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by:
-
Dejin Zheng authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 98bd4f72 ] the sfb->fb->screen_base is not save the value get by iounmap() when the chip id is 0x720. so iounmap() for address sfb->fb->screen_base is not right. Fixes: 1461d667 ("staging: sm7xxfb: merge sm712fb with fbdev") Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Cc: Teddy Wang <teddy.wang@siliconmotion.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
-
Qiushi Wu authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit b975abbd ] In intel_gtt_setup_scratch_page(), pointer "page" is not released if pci_dma_mapping_error() return an error, leading to a memory leak on module initialisation failure. Simply fix this issue by freeing "page" before return. Fixes: 0e87d2b0 ("intel-gtt: initialize our own scratch page") Signed-off-by:
Qiushi Wu <wu000273@umn.edu> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
-
Erik Kaneda authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 6a54ebae ] ACPICA commit e17b28cfcc31918d0db9547b6b274b09c413eb70 Object reference counts are used as a part of ACPICA's garbage collection mechanism. This mechanism keeps track of references to heap-allocated structures such as the ACPI operand objects. Recent server firmware has revealed that this reference count can overflow on large servers that declare many field units under the same operation_region. This occurs because each field unit declaration will add a reference count to the source operation_region. This change solves the reference count overflow for operation_regions objects by preventing fieldunits from incrementing their operation_region's reference count. Each operation_region's reference count will not be changed by named objects declared under the Field operator. During namespace deletion, the operation_region namespace node will be deleted and each fieldunit will be deleted without touching the deleted operation_region object. Link: https://github.com/acpica/acpica/commit/e17b28cfSigned-off-by:
Erik Kaneda <erik.kaneda@intel.com> Signed-off-by:
Bob Moore <robert.moore@intel.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
-
Coly Li authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 117f636e ] In register_cache_set(), c is pointer to struct cache_set, and ca is pointer to struct cache, if ca->sb.seq > c->sb.seq, it means this registering cache has up to date version and other members, the in- memory version and other members should be updated to the newer value. But current implementation makes a cache set only has a single cache device, so the above assumption works well except for a special case. The execption is when a cache device new created and both ca->sb.seq and c->sb.seq are 0, because the super block is never flushed out yet. In the location for the following if() check, 2156 if (ca->sb.seq > c->sb.seq) { 2157 c->sb.version = ca->sb.version; 2158 memcpy(c->sb.set_uuid, ca->sb.set_uuid, 16); 2159 c->sb.flags = ca->sb.flags; 2160 c->sb.seq = ca->sb.seq; 2161 pr_debug("set version = %llu\n", c->sb.version); 2162 } c->sb.version is not initialized yet and valued 0. When ca->sb.seq is 0, the if() check will fail (because both values are 0), and the cache set version, set_uuid, flags and seq won't be updated. The above problem is hiden for current code, because the bucket size is compatible among different super block version. And the next time when running cache set again, ca->sb.seq will be larger than 0 and cache set super block version will be updated properly. But if the large bucket feature is enabled, sb->bucket_size is the low 16bits of the bucket size. For a power of 2 value, when the actual bucket size exceeds 16bit width, sb->bucket_size will always be 0. Then read_super_common() will fail because the if() check to is_power_of_2(sb->bucket_size) is false. This is how the long time hidden bug is triggered. This patch modifies the if() check to the following way, 2156 if (ca->sb.seq > c->sb.seq || c->sb.seq == 0) { Then cache set's version, set_uuid, flags and seq will always be updated corectly including for a new created cache device. Signed-off-by:
Coly Li <colyli@suse.de> Reviewed-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
Jens Axboe <axboe@kernel.dk> Signed-off-by:
-
Jim Cromie authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit f678ce8c ] ddebug_describe_flags() currently fills a caller provided string buffer, after testing its size (also passed) in a BUG_ON. Fix this by replacing them with a known-big-enough string buffer wrapped in a struct, and passing that instead. Also simplify ddebug_describe_flags() flags parameter from a struct to a member in that struct, and hoist the member deref up to the caller. This makes the function reusable (soon) where flags are unpacked. Acked-by: <jbaron@akamai.com> Signed-off-by:
Jim Cromie <jim.cromie@gmail.com> Link: https://lore.kernel.org/r/20200719231058.1586423-8-jim.cromie@gmail.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
-
Sasi Kumar authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit a95bdfd2 ] Multiple connects/disconnects can cause a crash on the second disconnect. The driver had a problem where it would try to send endpoint commands after it was disconnected which is not allowed by the hardware. The fix is to only allow the endpoint commands when the endpoint is connected. This will also fix issues that showed up when using configfs to create gadgets. Signed-off-by:
Sasi Kumar <sasi.kumar@broadcom.com> Signed-off-by:
Al Cooper <alcooperx@gmail.com> Acked-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
-
Evgeny Novikov authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 2468c877 ] Driver does not release memory for device on error handling paths in net2280_probe() when gadget_release() is not registered yet. The patch fixes the bug like in other similar drivers. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Evgeny Novikov <novikov@ispras.ru> Signed-off-by:
-
Bolarinwa Olayemi Saheed authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 9018fd7f ] On failure pcie_capability_read_dword() sets it's last parameter, val to 0. However, with Patch 14/14, it is possible that val is set to ~0 on failure. This would introduce a bug because (x & x) == (~0 & x). This bug can be avoided without changing the function's behaviour if the return value of pcie_capability_read_dword is checked to confirm success. Check the return value of pcie_capability_read_dword() to ensure success. Suggested-by:
Bjorn Helgaas <bjorn@helgaas.com> Signed-off-by:
Bolarinwa Olayemi Saheed <refactormyself@gmail.com> Signed-off-by:
-
Prasanna Kerekoppa authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit fa326654 ] Bss info flag definition need to be fixed from 0x2 to 0x4 This flag is for rssi info received on channel. All Firmware branches defined as 0x4 and this is bug in brcmfmac. Signed-off-by:
Prasanna Kerekoppa <prasanna.kerekoppa@cypress.com> Signed-off-by:
Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by:
Wright Feng <wright.feng@cypress.com> Signed-off-by:
-
Paul E. McKenney authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 0a3b3c25 ] A large process running on a heavily loaded system can encounter the following RCU CPU stall warning: rcu: INFO: rcu_sched self-detected stall on CPU rcu: 3-....: (20998 ticks this GP) idle=4ea/1/0x4000000000000002 softirq=556558/556558 fqs=5190 (t=21013 jiffies g=1005461 q=132576) NMI backtrace for cpu 3 CPU: 3 PID: 501900 Comm: aio-free-ring-w Kdump: loaded Not tainted 5.2.9-108_fbk12_rc3_3858_gb83b75af7909 #1 Hardware name: Wiwynn HoneyBadger/PantherPlus, BIOS HBM6.71 02/03/2016 Call Trace: <IRQ> dump_stack+0x46/0x60 nmi_cpu_backtrace.cold.3+0x13/0x50 ? lapic_can_unplug_cpu.cold.27+0x34/0x34 nmi_trigger_cpumask_backtrace+0xba/0xca rcu_dump_cpu_stacks+0x99/0xc7 rcu_sched_clock_irq.cold.87+0x1aa/0x397 ? tick_sched_do_timer+0x60/0x60 update_process_times+0x28/0x60 tick_sched_timer+0x37/0x70 __hrtimer_run_queues+0xfe/0x270 hrtimer_interrupt+0xf4/0x210 smp_apic_timer_interrupt+0x5e/0x120 apic_timer_interrupt+0xf/0x20 </IRQ> RIP: 0010:kmem_cache_free+0x223/0x300 Code: 88 00 00 00 0f 85 ca 00 00 00 41 8b 55 18 31 f6 f7 da 41 f6 45 0a 02 40 0f 94 c6 83 c6 05 9c 41 5e fa e8 a0 a7 01 00 41 56 9d <49> 8b 47 08 a8 03 0f 85 87 00 00 00 65 48 ff 08 e9 3d fe ff ff 65 RSP: 0018:ffffc9000e8e3da8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000020000 RBX: ffff88861b9de960 RCX: 0000000000000030 RDX: fffffffffffe41e8 RSI: 000060777fe3a100 RDI: 000000000001be18 RBP: ffffea00186e7780 R08: ffffffffffffffff R09: ffffffffffffffff R10: ffff88861b9dea28 R11: ffff88887ffde000 R12: ffffffff81230a1f R13: ffff888854684dc0 R14: 0000000000000206 R15: ffff8888547dbc00 ? remove_vma+0x4f/0x60 remove_vma+0x4f/0x60 exit_mmap+0xd6/0x160 mmput+0x4a/0x110 do_exit+0x278/0xae0 ? syscall_trace_enter+0x1d3/0x2b0 ? handle_mm_fault+0xaa/0x1c0 do_group_exit+0x3a/0xa0 __x64_sys_exit_group+0x14/0x20 do_syscall_64+0x42/0x100 entry_SYSCALL_64_after_hwframe+0x44/0xa9 And on a PREEMPT=n kernel, the "while (vma)" loop in exit_mmap() can run for a very long time given a large process. This commit therefore adds a cond_resched() to this loop, providing RCU any needed quiescent states. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: <linux-mm@kvack.org> Reviewed-by:
Shakeel Butt <shakeelb@google.com> Reviewed-by:
Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by:
Paul E. McKenney <paulmck@kernel.org> Signed-off-by:
-
Michael Tretter authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit c704b170 ] Using plain echo to set the "force" connector attribute fails with -EINVAL, because echo appends a newline to the output. Replace strcmp with sysfs_streq to also accept strings that end with a newline. v2: use sysfs_streq instead of stripping trailing whitespace Signed-off-by:
Michael Tretter <m.tretter@pengutronix.de> Reviewed-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
Emil Velikov <emil.l.velikov@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170817104307.17124-1-m.tretter@pengutronix.deSigned-off-by:
-
Aditya Pakki authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 659fb5f1 ] On calling pm_runtime_get_sync() the reference count of the device is incremented. In case of failure, decrement the ref count before returning the error. Signed-off-by:
Aditya Pakki <pakki001@umn.edu> Signed-off-by:
Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
-
Evgeny Novikov authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit edcb3895 ] neofb_probe() calls neo_scan_monitor() that can successfully allocate a memory for info->monspecs.modedb and proceed to case 0x03. There it does not free the memory and returns -1. neofb_probe() goes to label err_scan_monitor, thus, it does not free this memory through calling fb_destroy_modedb() as well. We can not go to label err_init_hw since neo_scan_monitor() can fail during memory allocation. So, the patch frees the memory directly for case 0x03. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
-
Aditya Pakki authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 9fb10671 ] On calling pm_runtime_get_sync() the reference count of the device is incremented. In case of failure, decrement the reference count before returning the error. Acked-by:
Evan Quan <evan.quan@amd.com> Signed-off-by:
-
Paul E. McKenney authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 9f47eb54 ] Very large I/Os can cause the following RCU CPU stall warning: RIP: 0010:rb_prev+0x8/0x50 Code: 49 89 c0 49 89 d1 48 89 c2 48 89 f8 e9 e5 fd ff ff 4c 89 48 10 c3 4c = 89 06 c3 4c 89 40 10 c3 0f 1f 00 48 8b 0f 48 39 cf 74 38 <48> 8b 47 10 48 85 c0 74 22 48 8b 50 08 48 85 d2 74 0c 48 89 d0 48 RSP: 0018:ffffc9002212bab0 EFLAGS: 00000287 ORIG_RAX: ffffffffffffff13 RAX: ffff888821f93630 RBX: ffff888821f93630 RCX: ffff888821f937e0 RDX: 0000000000000000 RSI: 0000000000102000 RDI: ffff888821f93630 RBP: 0000000000103000 R08: 000000000006c000 R09: 0000000000000238 R10: 0000000000102fff R11: ffffc9002212bac8 R12: 0000000000000001 R13: ffffffffffffffff R14: 0000000000102000 R15: ffff888821f937e0 __lookup_extent_mapping+0xa0/0x110 try_release_extent_mapping+0xdc/0x220 btrfs_releasepage+0x45/0x70 shrink_page_list+0xa39/0xb30 shrink_inactive_list+0x18f/0x3b0 shrink_lruvec+0x38e/0x6b0 shrink_node+0x14d/0x690 do_try_to_free_pages+0xc6/0x3e0 try_to_free_mem_cgroup_pages+0xe6/0x1e0 reclaim_high.constprop.73+0x87/0xc0 mem_cgroup_handle_over_high+0x66/0x150 exit_to_usermode_loop+0x82/0xd0 do_syscall_64+0xd4/0x100 entry_SYSCALL_64_after_hwframe+0x44/0xa9 On a PREEMPT=n kernel, the try_release_extent_mapping() function's "while" loop might run for a very long time on a large I/O. This commit therefore adds a cond_resched() to this loop, providing RCU any needed quiescent states. Signed-off-by:
-
Lihong Kou authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit f9c70bdc ] In the case we set or free the global value listen_chan in different threads, we can encounter the UAF problems because the method is not protected by any lock, add one to avoid this bug. BUG: KASAN: use-after-free in l2cap_chan_close+0x48/0x990 net/bluetooth/l2cap_core.c:730 Read of size 8 at addr ffff888096950000 by task kworker/1:102/2868 CPU: 1 PID: 2868 Comm: kworker/1:102 Not tainted 5.5.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events do_enable_set Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fb/0x318 lib/dump_stack.c:118 print_address_description+0x74/0x5c0 mm/kasan/report.c:374 __kasan_report+0x149/0x1c0 mm/kasan/report.c:506 kasan_report+0x26/0x50 mm/kasan/common.c:641 __asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:135 l2cap_chan_close+0x48/0x990 net/bluetooth/l2cap_core.c:730 do_enable_set+0x660/0x900 net/bluetooth/6lowpan.c:1074 process_one_work+0x7f5/0x10f0 kernel/workqueue.c:2264 worker_thread+0xbbc/0x1630 kernel/workqueue.c:2410 kthread+0x332/0x350 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Allocated by task 2870: save_stack mm/kasan/common.c:72 [inline] set_track mm/kasan/common.c:80 [inline] __kasan_kmalloc+0x118/0x1c0 mm/kasan/common.c:515 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:529 kmem_cache_alloc_trace+0x221/0x2f0 mm/slab.c:3551 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:669 [inline] l2cap_chan_create+0x50/0x320 net/bluetooth/l2cap_core.c:446 chan_create net/bluetooth/6lowpan.c:640 [inline] bt_6lowpan_listen net/bluetooth/6lowpan.c:959 [inline] do_enable_set+0x6a4/0x900 net/bluetooth/6lowpan.c:1078 process_one_work+0x7f5/0x10f0 kernel/workqueue.c:2264 worker_thread+0xbbc/0x1630 kernel/workqueue.c:2410 kthread+0x332/0x350 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Freed by task 2870: save_stack mm/kasan/common.c:72 [inline] set_track mm/kasan/common.c:80 [inline] kasan_set_free_info mm/kasan/common.c:337 [inline] __kasan_slab_free+0x12e/0x1e0 mm/kasan/common.c:476 kasan_slab_free+0xe/0x10 mm/kasan/common.c:485 __cache_free mm/slab.c:3426 [inline] kfree+0x10d/0x220 mm/slab.c:3757 l2cap_chan_destroy net/bluetooth/l2cap_core.c:484 [inline] kref_put include/linux/kref.h:65 [inline] l2cap_chan_put+0x170/0x190 net/bluetooth/l2cap_core.c:498 do_enable_set+0x66c/0x900 net/bluetooth/6lowpan.c:1075 process_one_work+0x7f5/0x10f0 kernel/workqueue.c:2264 worker_thread+0xbbc/0x1630 kernel/workqueue.c:2410 kthread+0x332/0x350 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 The buggy address belongs to the object at ffff888096950000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 0 bytes inside of 2048-byte region [ffff888096950000, ffff888096950800) The buggy address belongs to the page: page:ffffea00025a5400 refcount:1 mapcount:0 mapping:ffff8880aa400e00 index:0x0 flags: 0xfffe0000000200(slab) raw: 00fffe0000000200 ffffea00027d1548 ffffea0002397808 ffff8880aa400e00 raw: 0000000000000000 ffff888096950000 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88809694ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88809694ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888096950000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888096950080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888096950100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Reported-by: syzbot+96414aa0033c363d8458@syzkaller.appspotmail.com Signed-off-by:
Lihong Kou <koulihong@huawei.com> Signed-off-by:
Marcel Holtmann <marcel@holtmann.org> Signed-off-by:
-
Tomi Valkeinen authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 3f9c1c87 ] If videomode_from_timings() returns true, the mode allocated with drm_mode_create will be leaked. Also, the return value of drm_mode_create() is never checked, and thus could cause NULL deref. Fix these two issues. Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200429104234.18910-1-tomi.valkeinen@ti.comReviewed-by:
Jyri Sarha <jsarha@ti.com> Acked-by:
-
Yu Kuai authored
BugLink: https://bugs.launchpad.net/bugs/1892822 [ Upstream commit 3ad7b4e8 ] if of_find_device_by_node() succeed, socfpga_setup_ocram_self_refresh doesn't have a corresponding put_device(). Thus add a jump target to fix the exception handling for this function implementation. Fixes: 44fd8c7d ("ARM: socfpga: support suspend to ram") Signed-off-by:
Yu Kuai <yukuai3@huawei.com> Signed-off-by:
Dinh Nguyen <dinguyen@kernel.org> Signed-off-by:
-
