CVE-2024-46753: btrfs: handle errors from btrfs_dec_ref() properly
Vulnerability summary
CVE-2024-46753 is a medium (CVSS 5.5) Reachable Assertion vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.9% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 33 · Related 30Timeline
- 18-09-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: handle errors from btrfs_dec_ref() properly In walk_up_proc() we BUG_ON(ret) from btrfs_dec_ref(). This is incorrect, we have proper error handling here, return the error.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.26% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu130 products
- linuxAll versions (No fix recorded) | < 5.15.0-142.152 | < 6.8.0-50.51
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1086.93 | < 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, < 0e4840ae09f375381167000ce47424818fcbcc7c | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 2c4fe45351e544da4b8f10c74b277117a4fa7869 | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 9c8237021b53d52357c0de07a768582fafb2791d | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 67e4ca7ddc67ef949326b4dc404a9678bbe67d72 | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < a7f16a7a709845855cb5a0e080a52bda5873f9de | ≥ 2c47e605a91dde6b0514f689645e7ab336c8592a, < 5eb178f373b4f16f3b42d55ff88fc94dd95b93b1 | 2.6.31
- linux_kernel< 5.10.236 | ≥ 5.11, < 5.15.180 | ≥ 5.16, < 6.1.134 | ≥ 6.2, < 6.6.87 | ≥ 6.7, < 6.10.10
Debian1 product
- linux< 6.1.135-1 | < 6.10.11-1
3 vendors · 133 products