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Filename Latest commit message Latest commit date
Ryusuke Konishi b4b3dc9e7e nilfs2: propagate directory read errors from nilfs_find_entry()
commit 08cfa12adf888db98879dbd735bc741360a34168 upstream.

Syzbot reported that a task hang occurs in vcs_open() during a fuzzing
test for nilfs2.

The root cause of this problem is that in nilfs_find_entry(), which
searches for directory entries, ignores errors when loading a directory
page/folio via nilfs_get_folio() fails.

If the filesystem images is corrupted, and the i_size of the directory
inode is large, and the directory page/folio is successfully read but
fails the sanity check, for example when it is zero-filled,
nilfs_check_folio() may continue to spit out error messages in bursts.

Fix this issue by propagating the error to the callers when loading a
page/folio fails in nilfs_find_entry().

The current interface of nilfs_find_entry() and its callers is outdated
and cannot propagate error codes such as -EIO and -ENOMEM returned via
nilfs_find_entry(), so fix it together.

Link: https://lkml.kernel.org/r/20241004033640.6841-1-konishi.ryusuke@gmail.com
Fixes: 2ba466d74e ("nilfs2: directory entry operations")
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: Lizhi Xu <lizhi.xu@windriver.com>
Closes: https://lkml.kernel.org/r/20240927013806.3577931-1-lizhi.xu@windriver.com
Reported-by: syzbot+8a192e8d090fa9a31135@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=8a192e8d090fa9a31135
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-08 16:20:49 +01:00
arch x86/apic: Always explicitly disarm TSC-deadline timer 2024-11-08 16:20:49 +01:00
block blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race 2024-11-08 16:20:48 +01:00
certs
crypto crypto: aead,cipher - zeroize key buffer after use 2024-11-08 16:20:33 +01:00
Documentation arm64: errata: Expand speculative SSBS workaround once more 2024-11-08 16:20:42 +01:00
drivers parport: Proper fix for array out-of-bounds access 2024-11-08 16:20:49 +01:00
fs nilfs2: propagate directory read errors from nilfs_find_entry() 2024-11-08 16:20:49 +01:00
include PCI: Add function 0 DMA alias quirk for Glenfly Arise chip 2024-11-08 16:20:47 +01:00
init init: open /initrd.image with O_LARGEFILE 2024-04-13 12:51:36 +02:00
ipc ipc: replace costly bailout check in sysvipc_find_ipc() 2024-09-04 13:15:02 +02:00
kernel tracing/kprobes: Fix symbol counting logic by looking at modules as well 2024-11-08 16:20:47 +01:00
lib debugobjects: Fix conditions in fill_pool() 2024-11-08 16:20:34 +01:00
LICENSES
mm mm/swapfile: skip HugeTLB pages for unuse_vma 2024-11-08 16:20:47 +01:00
net Bluetooth: Remove debugfs directory on module init failure 2024-11-08 16:20:48 +01:00
samples
scripts scripts: kconfig: merge_config: config files: add a trailing newline 2024-11-08 16:20:24 +01:00
security tomoyo: fallback to realpath if symlink's pathname does not exist 2024-11-08 16:20:41 +01:00
sound ALSA: core: add isascii() check to card ID generator 2024-11-08 16:20:40 +01:00
tools tools/iio: Add memory allocation failure check for trigger_name 2024-11-08 16:20:45 +01:00
usr
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-11-08 16:20:47 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-11-08 16:20:33 +01:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.284 2024-09-12 11:03:57 +02:00
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Linux kernel
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There are various text files in the Documentation/ subdirectory,
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Please read the Documentation/process/changes.rst file, as it contains the
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