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Review reviewHigh

CVE-2024-39467

Linux Linux, linux kernel

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-exe...

CVSS
7.1
EPSS
0.24%
14.9% percentile
CISA KEV
Not listed
Published
2024.06.26
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.24%
Technical severityCVSS 7.1

Vulnerability overview

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-exe...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < c559a8d840562fbfce9f318448dda2f7d3e6d8e8, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 75c87e2ac6149abf44bdde0dd6d541763ddb0dff, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < be0155202e431f3007778568a72432c68f8946ba, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 68e3cd4ecb8603936cccdc338929130045df2e57, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 20faaf30e55522bba2b56d9c46689233205d7717, >= 3.8, >= 3.8 < 5.4.278, >= 5.5 < 5.10.219, >= 5.11 < 5.15.161, >= 5.16 < 6.1.94, >= 6.2 < 6.6.34, >= 6.7 < 6.9.5
Fixed versions
5.4.278, 5.10.219, 5.15.161, 6.1.94, 6.6.34, 6.9.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125
CVE-2024-39467 — Linux Linux, linux kernel | SECUFOCUS NOW