5.5

CVE-2024-46840: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-46840DEBIAN-CVE-2024-46840
Published 27-09-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-46840 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.9% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.26%
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 32 · Related 29
DLA-3912-1DLA-4008-1DSA-5782-1SUSE-SU-2024:3983-1SUSE-SU-2024:3984-1SUSE-SU-2024:3985-1

Timeline

  1. 27-09-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUG_ON(refs == 0), which could be unkind since we aren't holding a lock on the extent leaf and thus could get a transient incorrect answer. In walk_down_proc we also BUG_ON(refs == 0), which could happen if we have extent tree corruption. Change that to return -EUCLEAN. In do_walk_down() we catch this case and handle it correctly, however we return -EIO, which -EUCLEAN is a more appropriate error code. Finally in walk_up_proc we have the same BUG_ON(refs == 0), so convert that to proper error handling. Also adjust the error message so we can actually do something with the information.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

0.00 pp

From 0.26% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.26%

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

No weakness data has been published for this record.

Affected systems

Ubuntu130 products
  • linuxAll versions (No fix recorded) | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1135.145 | < 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < c847b28a799733b04574060ab9d00f215970627d | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 71291aa7246645ef622621934d2067400380645e | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < c60676b81fab456b672796830f6d8057058f029c | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 728d4d045b628e006b48a448f3326a7194c88d32 | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 9cc887ac24b7a0598f4042ae9af6b9a33072f75b | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 7d1df13bf078ffebfedd361d714ff6cee1ff01b9 | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 03804641ec2d0da4fa088ad21c88e703d151ce16 | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < b8ccef048354074a548f108e51d0557d6adfd3a3 | 2.6.31
  • linux_kernel< 4.19.322 | ≥ 4.20, < 5.4.284 | ≥ 5.5, < 5.10.226 | ≥ 5.11, < 5.15.167 | ≥ 5.16, < 6.1.110 | ≥ 6.2, < 6.6.51 | ≥ 6.7, < 6.10.10
Debian1 product
  • linux< 6.1.112-1 | < 6.10.11-1

3 vendors · 133 products

References

31 links
Show all 31 references