7.8

CVE-2024-39467: linux Out-of-bounds Read

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-39467DEBIAN-CVE-2024-39467
Published 25-06-2024Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2024-39467 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 22 · Related 19
DSA-5730-1MGASA-2024-0263MGASA-2024-0266USN-6951-1USN-6951-2USN-6951-3

Timeline

  1. 25-06-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu129 products
  • linuxAll versions (No fix recorded) | < 5.4.0-192.212 | < 5.15.0-121.131 | < 6.8.0-44.44
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1130.140 | < 5.15.0-1069.75 | < 6.8.0-1015.16
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 98e4da8ca301e062d79ae168c67e56f3c3de3ce4, < c559a8d840562fbfce9f318448dda2f7d3e6d8e8 | ≥ 98e4da8ca301e062d79ae168c67e56f3c3de3ce4, < 75c87e2ac6149abf44bdde0dd6d541763ddb0dff | ≥ 98e4da8ca301e062d79ae168c67e56f3c3de3ce4, < 1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98 | ≥ 98e4da8ca301e062d79ae168c67e56f3c3de3ce4, < 8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0 | ≥ 98e4da8ca301e062d79ae168c67e56f3c3de3ce4, < be0155202e431f3007778568a72432c68f8946ba | ≥ 98e4da8ca301e062d79ae168c67e56f3c3de3ce4, < 68e3cd4ecb8603936cccdc338929130045df2e57 | ≥ 98e4da8ca301e062d79ae168c67e56f3c3de3ce4, < 20faaf30e55522bba2b56d9c46689233205d7717 | 3.8
  • linux_kernel≥ 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
Debian1 product
  • linux< 6.1.94-1 | < 6.9.7-1

3 vendors · 132 products

References

30 links
Show all 30 references