CVE-2024-39467— f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
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I. Basic Information for CVE-2024-39467
Vulnerability Information
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Vulnerability Title
f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode() syzbot reports a kernel bug as below: F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 ================================================================== BUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] BUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline] BUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 Read of size 1 at addr ffff88807a58c76c by task syz-executor280/5076 CPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] current_nat_addr fs/f2fs/node.h:213 [inline] f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline] f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838 __do_sys_ioctl fs/ioctl.c:902 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The root cause is we missed to do sanity check on i_xattr_nid during f2fs_iget(), so that in fiemap() path, current_nat_addr() will access nat_bitmap w/ offset from invalid i_xattr_nid, result in triggering kasan bug report, fix it.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于sanity_check_inode函数对 i_xattr_nid 没有进行健全性检查。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-39467
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Same Patch Batch · Linux · 2024-06-25 · 24 CVEs total
| CVE-2024-39301 | net/9p: fix uninit-value in p9_client_rpc() | |
| CVE-2024-39471 | drm/amdgpu: add error handle to avoid out-of-bounds | |
| CVE-2024-39469 | nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors | |
| CVE-2024-39470 | eventfs: Fix a possible null pointer dereference in eventfs_find_events() | |
| CVE-2024-39468 | smb: client: fix deadlock in smb2_find_smb_tcon() | |
| CVE-2024-39466 | thermal/drivers/qcom/lmh: Check for SCM availability at probe | |
| CVE-2024-39464 | media: v4l: async: Fix notifier list entry init | |
| CVE-2024-39465 | media: mgb4: Fix double debugfs remove | |
| CVE-2024-39463 | 9p: add missing locking around taking dentry fid list | |
| CVE-2024-39462 | clk: bcm: dvp: Assign ->num before accessing ->hws | |
| CVE-2024-39461 | clk: bcm: rpi: Assign ->num before accessing ->hws | |
| CVE-2024-39371 | io_uring: check for non-NULL file pointer in io_file_can_poll() | |
| CVE-2021-4440 | x86/xen: Drop USERGS_SYSRET64 paravirt call | |
| CVE-2024-39298 | mm/memory-failure: fix handling of dissolved but not taken off from buddy pages | |
| CVE-2024-39296 | bonding: fix oops during rmmod | |
| CVE-2024-39293 | Revert "xsk: Support redirect to any socket bound to the same umem" | |
| CVE-2024-39276 | ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find() | |
| CVE-2024-38661 | s390/ap: Fix crash in AP internal function modify_bitmap() | |
| CVE-2024-38385 | genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after() | |
| CVE-2024-38306 | btrfs: protect folio::private when attaching extent buffer folios |
Showing top 20 of 24 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
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