7.8

CVE-2024-26622: linux Use After Free

CVSS: 7.8v3.1HighModified
AliasesSUSE-SU-2024:1391-1UBUNTU-CVE-2024-26622DEBIAN-CVE-2024-26622
Published 04-03-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-26622 is a high (CVSS 7.8) Use After Free 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 (NVD)
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 69 · Related 67
DLA-3842-1DSA-5681-1SUSE-SU-2024:0855-1SUSE-SU-2024:0856-1SUSE-SU-2024:0857-1SUSE-SU-2024:0858-1

Timeline

  1. 04-03-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems.

CVSS metrics

3 scores · 3 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 18-09-2026

18-09-202618-10-2026
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

Ubuntu116 products
  • linuxAll versions (No fix recorded) | < 4.4.0-254.288 | < 4.15.0-225.237 | < 5.4.0-182.202 | < 5.15.0-107.117
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1131.137 | < 4.4.0-1169.184 | < 4.15.0-1168.181 | < 5.4.0-1125.135 | < 5.15.0-1062.68
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ bd03a3e4c9a9df0c6b007045fa7fc8889111a478, < a23ac1788e2c828c097119e9a3178f0b7e503fee | ≥ bd03a3e4c9a9df0c6b007045fa7fc8889111a478, < 7d930a4da17958f869ef679ee0e4a8729337affc | ≥ bd03a3e4c9a9df0c6b007045fa7fc8889111a478, < 3bfe04c1273d30b866f4c7c238331ed3b08e5824 | ≥ bd03a3e4c9a9df0c6b007045fa7fc8889111a478, < 2caa605079488da9601099fbda460cfc1702839f | ≥ bd03a3e4c9a9df0c6b007045fa7fc8889111a478, < 6edefe1b6c29a9932f558a898968a9fcbeec5711 | ≥ bd03a3e4c9a9df0c6b007045fa7fc8889111a478, < 2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815 | 3.1
  • linux_kernel≥ 3.1, < 5.10.212 | ≥ 5.11, < 5.15.151 | ≥ 5.16, < 6.1.81 | ≥ 6.2, < 6.6.21 | ≥ 6.7, < 6.7.9 | 6.8:rc1 | 6.8:rc2 | 6.8:rc3 | 6.8:rc4 | 6.8:rc5 | 6.8:rc6
Debian1 product
  • linux< 6.1.82-1 | < 6.7.9-1
Suse1 product
  • kernel-livepatch-SLE15-SP3_Update_41&distro=SUSE Linux Enterprise Live Patching 15 SP3< 5-150300.2.1

4 vendors · 120 products

References

26 links
Show all 26 references