- 20 Mar, 2023 7 commits
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Ilya Leoshkevich authored
report_user_fault() currently does not show which library last_break points to. Call print_vma_addr() to find out; the output now looks like this: Last Breaking-Event-Address: [<000003ffaa2a56e4>] libc.so.6[3ffaa180000+251000] For kernel it's unchanged: Last Breaking-Event-Address: [<000000000030fd06>] trace_hardirqs_on+0x56/0xc8 Signed-off-by:Ilya Leoshkevich <iii@linux.ibm.com> Acked-by:
Heiko Carstens <hca@linux.ibm.com> Signed-off-by:
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Luis Chamberlain authored
The routine appldata_register_ops() allocates a sysctl table with 4 entries. The firsts one, ops->ctl_table[0] is the parent directory with an empty entry following it, ops->ctl_table[1]. The next entry is for the ops->name and that is ops->ctl_table[2]. It needs an empty entry following that, and that is ops->ctl_table[3]. And so hence the kcalloc(4, sizeof(struct ctl_table), GFP_KERNEL). We can simplify this considerably since sysctl_register("foo", table) can create the parent directory for us if it does not exist. So we can just remove the first two entries and move back the ops->name to the first entry, and just use kcalloc(2, ...). [gor@linux.ibm.com: appldata_generic_handler fixup ctl_table index 2->0] Signed-off-by:Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20230310234525.3986352-7-mcgrof@kernel.orgReviewed-by:
Vasily Gorbik <gor@linux.ibm.com> Signed-off-by:
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Luis Chamberlain authored
There is no need to declare an extra tables to just create directory, this can be easily be done with a prefix path with register_sysctl(). Simplify this registration. Signed-off-by:
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Luis Chamberlain authored
There is no need to declare an extra tables to just create directory, this can be easily be done with a prefix path with register_sysctl(). Simplify this registration. Signed-off-by:
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Luis Chamberlain authored
There is no need to declare an extra tables to just create directory, this can be easily be done with a prefix path with register_sysctl(). Simplify this registration. Signed-off-by:
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Luis Chamberlain authored
There is no need to declare an extra tables to just create directory, this can be easily be done with a prefix path with register_sysctl(). Simplify this registration. Signed-off-by:
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Luis Chamberlain authored
There is no need to declare an extra tables to just create directory, this can be easily be done with a prefix path with register_sysctl(). Simplify this registration. Signed-off-by:
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- 13 Mar, 2023 10 commits
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Niklas Schnelle authored
Prior to commit 960ac362 ("s390/pci: allow zPCI zbus without a function zero") enabling and scanning a PCI function had to potentially be postponed until the function with devfn zero on that bus was plugged. While the commit removed the waiting itself extra code to scan all functions on the PCI bus once function zero appeared was missed. Remove that code and the outdated comments about waiting for function zero. Signed-off-by:
Niklas Schnelle <schnelle@linux.ibm.com> Reviewed-by:
Matthew Rosato <mjrosato@linux.ibm.com> Link: https://lore.kernel.org/r/20230306151014.60913-5-schnelle@linux.ibm.comSigned-off-by:
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Niklas Schnelle authored
The pci_bus_add_devices() call in zpci_bus_create_pci_bus() is without function since at this point no device could have been added to the freshly created PCI bus. Suggested-by:
Bjorn Helgaas <helgaas@kernel.org> Signed-off-by:
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Niklas Schnelle authored
As the name suggests zpci_bus_scan_device() is used to scan a specific device and thus pci_bus_add_device() for that device is sufficient. Furthermore move this call inside the rescan/remove locking. Suggested-by:
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Heiko Carstens authored
gen_lpswe() contains a BUILD_BUG_ON() statement which depends on a function parameter. If the compiler decides to generate a not inlined function this will lead to a build error, even if all call sites pass a valid parameter. To avoid this always inline gen_lpswe(). Signed-off-by:
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Al Viro authored
Setting and ->psw.addr in childregs of kernel thread is a rudiment of the old kernel_thread()/kernel_execve() implementation. Mainline hadn't been using them since 2012. And clarify the assignments to frame->sf.gprs - the array stores grp6..gpr15 values to be set by __switch_to(), so frame->sf.gprs[5] actually affects grp11, etc. Better spell that as frame->sf.gprs[11 - 6]... Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/ZAU6BYFisE8evmYf@ZenIVSigned-off-by:
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Yu Zhe authored
Pointer variables of void * type do not require type cast. Signed-off-by:
Yu Zhe <yuzhe@nfschina.com> Reviewed-by:
Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/r/20230303052155.21072-1-yuzhe@nfschina.comSigned-off-by:
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Heiko Carstens authored
There is no point in changing branch prediction state of a cpu shortly before it enters stop state. Therefore remove __bpon(). Acked-by:
Alexander Gordeev <agordeev@linux.ibm.com> Reviewed-by:
Sven Schnelle <svens@linux.ibm.com> Signed-off-by:
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Heiko Carstens authored
s390_isolate_bp_guest() is unused. Remove it. Reviewed-by:
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Heiko Carstens authored
TIF_ISOLATE_BP is unused since it was introduced with commit 6b73044b ("s390: run user space and KVM guests with modified branch prediction"). Given that there is no use case remove it again. Acked-by:
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Heiko Carstens authored
When leaving interpretive execution because of a program check BPENTER should be called like it is done on interrupt exit as well. Acked-by:
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- 12 Mar, 2023 12 commits
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Linus Torvalds authored
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Hector Martin authored
This reverts part of commit 015b8cc5 ("wifi: cfg80211: Fix use after free for wext") This commit broke WPA offload by unconditionally clearing the crypto modes for non-WEP connections. Drop that part of the patch. Signed-off-by:
Hector Martin <marcan@marcan.st> Reported-by:
Ilya <me@0upti.me> Reported-and-tested-by:
Janne Grunau <j@jannau.net> Reviewed-by:
Eric Curtin <ecurtin@redhat.com> Fixes: 015b8cc5 ("wifi: cfg80211: Fix use after free for wext") Cc: stable@kernel.org Link: https://lore.kernel.org/linux-wireless/ZAx0TWRBlGfv7pNl@kroah.com/T/#m11e6e0915ab8fa19ce8bc9695ab288c0fe018edfSigned-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmddLinus Torvalds authored
Pull tpm fixes from Jarkko Sakkinen: "Two additional bug fixes for v6.3" * tag 'tpm-v6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: tpm: disable hwrng for fTPM on some AMD designs tpm/eventlog: Don't abort tpm_read_log on faulty ACPI address
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Mario Limonciello authored
AMD has issued an advisory indicating that having fTPM enabled in BIOS can cause "stuttering" in the OS. This issue has been fixed in newer versions of the fTPM firmware, but it's up to system designers to decide whether to distribute it. This issue has existed for a while, but is more prevalent starting with kernel 6.1 because commit b006c439 ("hwrng: core - start hwrng kthread also for untrusted sources") started to use the fTPM for hwrng by default. However, all uses of /dev/hwrng result in unacceptable stuttering. So, simply disable registration of the defective hwrng when detecting these faulty fTPM versions. As this is caused by faulty firmware, it is plausible that such a problem could also be reproduced by other TPM interactions, but this hasn't been shown by any user's testing or reports. It is hypothesized to be triggered more frequently by the use of the RNG because userspace software will fetch random numbers regularly. Intentionally continue to register other TPM functionality so that users that rely upon PCR measurements or any storage of data will still have access to it. If it's found later that another TPM functionality is exacerbating this problem a module parameter it can be turned off entirely and a module parameter can be introduced to allow users who rely upon fTPM functionality to turn it on even though this problem is present. Link: https://www.amd.com/en/support/kb/faq/pa-410 Link: https://bugzilla.kernel.org/show_bug.cgi?id=216989 Link: https://lore.kernel.org/all/20230209153120.261904-1-Jason@zx2c4.com/ Fixes: b006c439 ("hwrng: core - start hwrng kthread also for untrusted sources") Cc: stable@vger.kernel.org Cc: Jarkko Sakkinen <jarkko@kernel.org> Cc: Thorsten Leemhuis <regressions@leemhuis.info> Cc: James Bottomley <James.Bottomley@hansenpartnership.com> Tested-by: reach622@mailcuk.com Tested-by:
Bell <1138267643@qq.com> Co-developed-by:
Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by:
Mario Limonciello <mario.limonciello@amd.com> Reviewed-by:
Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by:
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Morten Linderud authored
tpm_read_log_acpi() should return -ENODEV when no eventlog from the ACPI table is found. If the firmware vendor includes an invalid log address we are unable to map from the ACPI memory and tpm_read_log() returns -EIO which would abort discovery of the eventlog. Change the return value from -EIO to -ENODEV when acpi_os_map_iomem() fails to map the event log. The following hardware was used to test this issue: Framework Laptop (Pre-production) BIOS: INSYDE Corp, Revision: 3.2 TPM Device: NTC, Firmware Revision: 7.2 Dump of the faulty ACPI TPM2 table: [000h 0000 4] Signature : "TPM2" [Trusted Platform Module hardware interface Table] [004h 0004 4] Table Length : 0000004C [008h 0008 1] Revision : 04 [009h 0009 1] Checksum : 2B [00Ah 0010 6] Oem ID : "INSYDE" [010h 0016 8] Oem Table ID : "TGL-ULT" [018h 0024 4] Oem Revision : 00000002 [01Ch 0028 4] Asl Compiler ID : "ACPI" [020h 0032 4] Asl Compiler Revision : 00040000 [024h 0036 2] Platform Class : 0000 [026h 0038 2] Reserved : 0000 [028h 0040 8] Control Address : 0000000000000000 [030h 0048 4] Start Method : 06 [Memory Mapped I/O] [034h 0052 12] Method Parameters : 00 00 00 00 00 00 00 00 00 00 00 00 [040h 0064 4] Minimum Log Length : 00010000 [044h 0068 8] Log Address : 000000004053D000 Fixes: 0cf577a0 ("tpm: Fix handling of missing event log") Tested-by:Erkki Eilonen <erkki@bearmetal.eu> Signed-off-by:
Morten Linderud <morten@linderud.pw> Reviewed-by:
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs fixes from Darrick Wong: - Fix a crash if mount time quotacheck fails when there are inodes queued for garbage collection. - Fix an off by one error when discarding folios after writeback failure. * tag 'xfs-6.3-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: fix off-by-one-block in xfs_discard_folio() xfs: quotacheck failure can race with background inode inactivation
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging driver fixes and removal from Greg KH: "Here are four small staging driver fixes, and one big staging driver deletion for 6.3-rc2. The fixes are: - rtl8192e driver fixes for where the driver was attempting to execute various programs directly from the disk for unknown reasons - rtl8723bs driver fixes for issues found by Hans in testing The deleted driver is the removal of the r8188eu wireless driver as now in 6.3-rc1 we have a "real" wifi driver for one that includes support for many many more devices than this old driver did. So it's time to remove it as it is no longer needed. The maintainers of this driver all have acked its removal. Many thanks to them over the years for working to clean it up and keep it working while the real driver was being developed. All of these have been in linux-next this week with no reported problems" * tag 'staging-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: r8188eu: delete driver staging: rtl8723bs: Pass correct parameters to cfg80211_get_bss() staging: rtl8723bs: Fix key-store index handling staging: rtl8192e: Remove call_usermodehelper starting RadioPower.sh staging: rtl8192e: Remove function ..dm_check_ac_dc_power calling a script -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fix from Borislav Petkov: "A single erratum fix for AMD machines: - Disable XSAVES on AMD Zen1 and Zen2 machines due to an erratum. No impact to anything as those machines will fallback to XSAVEC which is equivalent there" * tag 'x86_urgent_for_v6.3_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/CPU/AMD: Disable XSAVES on AMD family 0x17 -
Linus Torvalds authored
Pull clone3 fix from Christian Brauner: "A simple fix for the clone3() system call. The CLONE_NEWTIME allows the creation of time namespaces. The flag reuses a bit from the CSIGNAL bits that are used in the legacy clone() system call to set the signal that gets sent to the parent after the child exits. The clone3() system call doesn't rely on CSIGNAL anymore as it uses a dedicated .exit_signal field in struct clone_args. So we blocked all CSIGNAL bits in clone3_args_valid(). When CLONE_NEWTIME was introduced and reused a CSIGNAL bit we forgot to adapt clone3_args_valid() causing CLONE_NEWTIME with clone3() to be rejected. Fix this" * tag 'kernel.fork.v6.3-rc2' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux: selftests/clone3: test clone3 with CLONE_NEWTIME fork: allow CLONE_NEWTIME in clone3 flags
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmappingLinus Torvalds authored
Pull vfs fixes from Christian Brauner: - When allocating pages for a watch queue failed, we didn't return an error causing userspace to proceed even though all subsequent notifcations would be lost. Make sure to return an error. - Fix a misformed tree entry for the idmapping maintainers entry. - When setting file leases from an idmapped mount via generic_setlease() we need to take the idmapping into account otherwise taking a lease would fail from an idmapped mount. - Remove two redundant assignments, one in splice code and the other in locks code, that static checkers complained about. * tag 'vfs.misc.v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping: filelocks: use mount idmapping for setlease permission check fs/locks: Remove redundant assignment to cmd splice: Remove redundant assignment to ret MAINTAINERS: repair a malformed T: entry in IDMAPPED MOUNTS watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 fixes from Ted Ts'o: "Bug fixes and regressions for ext4, the most serious of which is a potential deadlock during directory renames that was introduced during the merge window discovered by a combination of syzbot and lockdep" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: zero i_disksize when initializing the bootloader inode ext4: make sure fs error flag setted before clear journal error ext4: commit super block if fs record error when journal record without error ext4, jbd2: add an optimized bmap for the journal inode ext4: fix WARNING in ext4_update_inline_data ext4: move where set the MAY_INLINE_DATA flag is set ext4: Fix deadlock during directory rename ext4: Fix comment about the 64BIT feature docs: ext4: modify the group desc size to 64 ext4: fix another off-by-one fsmap error on 1k block filesystems ext4: fix RENAME_WHITEOUT handling for inline directories ext4: make kobj_type structures constant ext4: fix cgroup writeback accounting with fs-layer encryption
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Linus Torvalds authored
The cpumask_check() was unnecessarily tight, and causes problems for the users of cpumask_next(). We have a number of users that take the previous return value of one of the bit scanning functions and subtract one to keep it in "range". But since the scanning functions end up returning up to 'small_cpumask_bits' instead of the tighter 'nr_cpumask_bits', the range really needs to be using that widened form. [ This "previous-1" behavior is also the reason we have all those comments about /* -1 is a legal arg here. */ and separate checks for that being ok. So we could have just made "small_cpumask_bits-1" be a similar special "don't check this" value. Tetsuo Handa even suggested a patch that only does that for cpumask_next(), since that seems to be the only actual case that triggers, but that all makes it even _more_ magical and special. So just relax the check ] One example of this kind of pattern being the 'c_start()' function in arch/x86/kernel/cpu/proc.c, but also duplicated in various forms on other architectures. Reported-by: syzbot+96cae094d90877641f32@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=96cae094d90877641f32Reported-by:
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Link: https://lore.kernel.org/lkml/c1f4cc16-feea-b83c-82cf-1a1f007b7eb9@I-love.SAKURA.ne.jp/ Fixes: 596ff4a0 ("cpumask: re-introduce constant-sized cpumask optimizations") Signed-off-by:
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- 11 Mar, 2023 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c updates from Wolfram Sang: "This marks the end of a transition to let I2C have the same probe semantics as other subsystems. Uwe took care that no drivers in the current tree nor in -next use the deprecated .probe call. So, it is a good time to switch to the new, standard semantics now. There is also a regression fix: - regression fix for the notifier handling of the I2C core - final coversions of drivers away from deprecated .probe - make .probe_new the standard probe and convert I2C core to use it * tag 'i2c-for-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: dev: Fix bus callback return values i2c: Convert drivers to new .probe() callback i2c: mux: Convert all drivers to new .probe() callback i2c: Switch .probe() to not take an id parameter media: i2c: ov2685: convert to i2c's .probe_new() media: i2c: ov5695: convert to i2c's .probe_new() w1: ds2482: Convert to i2c's .probe_new() serial: sc16is7xx: Convert to i2c's .probe_new() mtd: maps: pismo: Convert to i2c's .probe_new() misc: ad525x_dpot-i2c: Convert to i2c's .probe_new()
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Richard Weinberger authored
Switching to BLK_MQ_F_BLOCKING wrongly removed the call to blk_mq_end_request(). Add it back to have our IOs finished Fixes: 91cc8fbc ("ubi: block: set BLK_MQ_F_BLOCKING") Analyzed-by:
Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/linux-mtd/CAHk-=wi29bbBNh3RqJKu3PxzpjDN5D5K17gEVtXrb7-6bfrnMQ@mail.gmail.com/Signed-off-by:
Richard Weinberger <richard@nod.at> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
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Zhihao Cheng authored
If the boot loader inode has never been used before, the EXT4_IOC_SWAP_BOOT inode will initialize it, including setting the i_size to 0. However, if the "never before used" boot loader has a non-zero i_size, then i_disksize will be non-zero, and the inconsistency between i_size and i_disksize can trigger a kernel warning: WARNING: CPU: 0 PID: 2580 at fs/ext4/file.c:319 CPU: 0 PID: 2580 Comm: bb Not tainted 6.3.0-rc1-00004-g703695902cfa RIP: 0010:ext4_file_write_iter+0xbc7/0xd10 Call Trace: vfs_write+0x3b1/0x5c0 ksys_write+0x77/0x160 __x64_sys_write+0x22/0x30 do_syscall_64+0x39/0x80 Reproducer: 1. create corrupted image and mount it: mke2fs -t ext4 /tmp/foo.img 200 debugfs -wR "sif <5> size 25700" /tmp/foo.img mount -t ext4 /tmp/foo.img /mnt cd /mnt echo 123 > file 2. Run the reproducer program: posix_memalign(&buf, 1024, 1024) fd = open("file", O_RDWR | O_DIRECT); ioctl(fd, EXT4_IOC_SWAP_BOOT); write(fd, buf, 1024); Fix this by setting i_disksize as well as i_size to zero when initiaizing the boot loader inode. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217159 Cc: stable@kernel.org Signed-off-by:Zhihao Cheng <chengzhihao1@huawei.com> Link: https://lore.kernel.org/r/20230308032643.641113-1-chengzhihao1@huawei.comSigned-off-by:
Theodore Ts'o <tytso@mit.edu>
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Ye Bin authored
Now, jounral error number maybe cleared even though ext4_commit_super() failed. This may lead to error flag miss, then fsck will miss to check file system deeply. Signed-off-by:
Ye Bin <yebin10@huawei.com> Reviewed-by:
Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230307061703.245965-3-yebin@huaweicloud.com
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Ye Bin authored
Now, 'es->s_state' maybe covered by recover journal. And journal errno maybe not recorded in journal sb as IO error. ext4_update_super() only update error information when 'sbi->s_add_error_count' large than zero. Then 'EXT4_ERROR_FS' flag maybe lost. To solve above issue just recover 'es->s_state' error flag after journal replay like error info. Signed-off-by:
Baokun Li <libaokun1@huawei.com> Reviewed-by:
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Theodore Ts'o authored
The generic bmap() function exported by the VFS takes locks and does checks that are not necessary for the journal inode. So allow the file system to set a journal-optimized bmap function in journal->j_bmap. Reported-by: syzbot+9543479984ae9e576000@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?id=e4aaa78795e490421c79f76ec3679006c8ff4cf0Signed-off-by:
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Ye Bin authored
Syzbot found the following issue: EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. fscrypt: AES-256-CTS-CBC using implementation "cts-cbc-aes-aesni" fscrypt: AES-256-XTS using implementation "xts-aes-aesni" ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5071 at mm/page_alloc.c:5525 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5525 Modules linked in: CPU: 1 PID: 5071 Comm: syz-executor263 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5525 RSP: 0018:ffffc90003c2f1c0 EFLAGS: 00010246 RAX: ffffc90003c2f220 RBX: 0000000000000014 RCX: 0000000000000000 RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90003c2f248 RBP: ffffc90003c2f2d8 R08: dffffc0000000000 R09: ffffc90003c2f220 R10: fffff52000785e49 R11: 1ffff92000785e44 R12: 0000000000040d40 R13: 1ffff92000785e40 R14: dffffc0000000000 R15: 1ffff92000785e3c FS: 0000555556c0d300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f95d5e04138 CR3: 00000000793aa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __alloc_pages_node include/linux/gfp.h:237 [inline] alloc_pages_node include/linux/gfp.h:260 [inline] __kmalloc_large_node+0x95/0x1e0 mm/slab_common.c:1113 __do_kmalloc_node mm/slab_common.c:956 [inline] __kmalloc+0xfe/0x190 mm/slab_common.c:981 kmalloc include/linux/slab.h:584 [inline] kzalloc include/linux/slab.h:720 [inline] ext4_update_inline_data+0x236/0x6b0 fs/ext4/inline.c:346 ext4_update_inline_dir fs/ext4/inline.c:1115 [inline] ext4_try_add_inline_entry+0x328/0x990 fs/ext4/inline.c:1307 ext4_add_entry+0x5a4/0xeb0 fs/ext4/namei.c:2385 ext4_add_nondir+0x96/0x260 fs/ext4/namei.c:2772 ext4_create+0x36c/0x560 fs/ext4/namei.c:2817 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x12ac/0x2dd0 fs/namei.c:3711 do_filp_open+0x264/0x4f0 fs/namei.c:3741 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Above issue happens as follows: ext4_iget ext4_find_inline_data_nolock ->i_inline_off=164 i_inline_size=60 ext4_try_add_inline_entry __ext4_mark_inode_dirty ext4_expand_extra_isize_ea ->i_extra_isize=32 s_want_extra_isize=44 ext4_xattr_shift_entries ->after shift i_inline_off is incorrect, actually is change to 176 ext4_try_add_inline_entry ext4_update_inline_dir get_max_inline_xattr_value_size if (EXT4_I(inode)->i_inline_off) entry = (struct ext4_xattr_entry *)((void *)raw_inode + EXT4_I(inode)->i_inline_off); free += EXT4_XATTR_SIZE(le32_to_cpu(entry->e_value_size)); ->As entry is incorrect, then 'free' may be negative ext4_update_inline_data value = kzalloc(len, GFP_NOFS); -> len is unsigned int, maybe very large, then trigger warning when 'kzalloc()' To resolve the above issue we need to update 'i_inline_off' after 'ext4_xattr_shift_entries()'. We do not need to set EXT4_STATE_MAY_INLINE_DATA flag here, since ext4_mark_inode_dirty() already sets this flag if needed. Setting EXT4_STATE_MAY_INLINE_DATA when it is needed may trigger a BUG_ON in ext4_writepages(). Reported-by: syzbot+d30838395804afc2fa6f@syzkaller.appspotmail.com Cc: stable@kernel.org Signed-off-by: -
Ye Bin authored
The only caller of ext4_find_inline_data_nolock() that needs setting of EXT4_STATE_MAY_INLINE_DATA flag is ext4_iget_extra_inode(). In ext4_write_inline_data_end() we just need to update inode->i_inline_off. Since we are going to add one more caller that does not need to set EXT4_STATE_MAY_INLINE_DATA, just move setting of EXT4_STATE_MAY_INLINE_DATA out to ext4_iget_extra_inode(). Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Twenty fixes all in drivers except the one zone storage revalidation fix to sd. The megaraid_sas fixes are more on the level of a driver update (enabling crash dump and increasing lun number) but I thought you could let this slide on -rc1 and the next most extensive update is a load of fixes to mpi3mr" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: sd: Fix wrong zone_write_granularity value during revalidate scsi: storvsc: Handle BlockSize change in Hyper-V VHD/VHDX file scsi: megaraid_sas: Driver version update to 07.725.01.00-rc1 scsi: megaraid_sas: Add crash dump mode capability bit in MFI capabilities scsi: megaraid_sas: Update max supported LD IDs to 240 scsi: mpi3mr: Bad drive in topology results kernel crash scsi: mpi3mr: NVMe command size greater than 8K fails scsi: mpi3mr: Return proper values for failures in firmware init path scsi: mpi3mr: Wait for diagnostic save during controller init scsi: mpi3mr: Driver unload crashes host when enhanced logging is enabled scsi: mpi3mr: ioctl timeout when disabling/enabling interrupt scsi: lpfc: Avoid usage of list iterator variable after loop scsi: lpfc: Check kzalloc() in lpfc_sli4_cgn_params_read() scsi: ufs: mcq: qcom: Clean the return path of ufs_qcom_mcq_config_resource() scsi: ufs: mcq: qcom: Fix passing zero to PTR_ERR scsi: ufs: ufs-qcom: Remove impossible check scsi: ufs: core: Add soft dependency on governor_simpleondemand scsi: hisi_sas: Check devm_add_action() return value scsi: qla2xxx: Add option to disable FC2 Target support scsi: target: iscsi: Fix an error message in iscsi_check_key()
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull block fixes from Jens Axboe: - Fix a regression in exclusive mode handling of the partition code, introduced in this merge windoe (Yu) - Fix for a use-after-free in BFQ (Yu) - Add sysfs documentation for the 'hidden' attribute (Sagi) * tag 'block-6.3-2023-03-09' of git://git.kernel.dk/linux: block, bfq: fix uaf for 'stable_merge_bfqq' docs: sysfs-block: document hidden sysfs entry block: fix wrong mode for blkdev_put() from disk_scan_partitions()
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull put_and_unmap_page() helper from Al Viro: "kmap_local_page() conversions in local filesystems keep running into kunmap_local_page()+put_page() combinations. We can keep inventing names for identical inline helpers, but it's getting rather inconvenient. I've added a trivial helper to linux/highmem.h instead. I would've held that back until the merge window, if not for the mess it causes in tree topology - I've several branches merging from that one, and it's only going to get worse if e.g. ext2 stuff gets picked by Jan" * tag 'pull-highmem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: new helper: put_and_unmap_page()
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