CVE-2024-42297

MEDIUM EPSS 14.6%
Published Aug 17, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 17, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to don't dirty inode for readonly filesystem syzbot reports f2fs bug as below: kernel BUG at fs/f2fs/inode.c:933! RIP: 0010:f2fs_evict_inode+0x1576/0x1590 fs/f2fs/inode.c:933 Call Trace: evict+0x2a4/0x620 fs/inode.c:664 dispose_list fs/inode.c:697 [inline] evict_inodes+0x5f8/0x690 fs/inode.c:747 generic_shutdown_super+0x9d/0x2c0 fs/super.c:675 kill_block_super+0x44/0x90 fs/super.c:1667 kill_f2fs_super+0x303/0x3b0 fs/f2fs/super.c:4894 deactivate_locked_super+0xc1/0x130 fs/super.c:484 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256 task_work_run+0x24a/0x300 kernel/task_work.c:180 ptrace_notify+0x2cd/0x380 kernel/signal.c:2399 ptrace_report_syscall include/linux/ptrace.h:411 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline] syscall_exit_work kernel/entry/common.c:251 [inline] syscall_exit_to_user_mode_prepare kernel/entry/common.c:278 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x15c/0x280 kernel/entry/common.c:296 do_syscall_64+0x50/0x110 arch/x86/entry/common.c:88 entry_SYSCALL_64_after_hwframe+0x63/0x6b The root cause is: - do_sys_open - f2fs_lookup - __f2fs_find_entry - f2fs_i_depth_write - f2fs_mark_inode_dirty_sync - f2fs_dirty_inode - set_inode_flag(inode, FI_DIRTY_INODE) - umount - kill_f2fs_super - kill_block_super - generic_shutdown_super - sync_filesystem : sb is readonly, skip sync_filesystem() - evict_inodes - iput - f2fs_evict_inode - f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)) : trigger kernel panic When we try to repair i_current_depth in readonly filesystem, let's skip dirty inode to avoid panic in later f2fs_evict_inode().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
14.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel* <6.1.103
linuxlinux_kernel*≥6.2  –  <6.6.44
linuxlinux_kernel*≥6.7  –  <6.10.3

References 10

  • git.kernel.org https://git.kernel.org/stable/c/192b8fb8d1c8ca3c87366ebbef599fa80bb626b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2434344559f6743efb3ac15d11af9a0db9543bd3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2d2916516577f2239b3377d9e8d12da5e6ccdfcf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54162974aea37a8cae00742470a78c7f6bd6f915
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54bc4e88447e385c4d4ffa85d93e0dce628fcfa6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ce8135accf103f7333af472709125878704fdd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e62ff092a42f4a1bae3b310cf46673b4f3aac3b5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ec56571b4b146a1cfbedab49d5fcaf19fe8bf4f1
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/192b8fb8d1c8ca3c87366ebbef599fa80bb626b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2434344559f6743efb3ac15d11af9a0db9543bd3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2d2916516577f2239b3377d9e8d12da5e6ccdfcf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54162974aea37a8cae00742470a78c7f6bd6f915
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54bc4e88447e385c4d4ffa85d93e0dce628fcfa6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ce8135accf103f7333af472709125878704fdd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e62ff092a42f4a1bae3b310cf46673b4f3aac3b5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ec56571b4b146a1cfbedab49d5fcaf19fe8bf4f1
    Patch