CVE-2024-46840
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-46840
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-46840.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-46840
- Downstream
- Related
- Published
- 2024-09-27T12:39:34.998Z
- Modified
- 2025-11-28T02:34:27.282105Z
- Summary
- btrfs: clean up our handling of refs == 0 in snapshot delete
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
btrfs: clean up our handling of refs == 0 in snapshot delete
In reada we BUGON(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 walkdownproc we also BUGON(refs == 0), which could happen if we have extent tree corruption. Change that to return -EUCLEAN. In dowalkdown() we catch this case and handle it correctly, however we return -EIO, which -EUCLEAN is a more appropriate error code. Finally in walkupproc 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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46840.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/03804641ec2d0da4fa088ad21c88e703d151ce16
- https://git.kernel.org/stable/c/71291aa7246645ef622621934d2067400380645e
- https://git.kernel.org/stable/c/728d4d045b628e006b48a448f3326a7194c88d32
- https://git.kernel.org/stable/c/7d1df13bf078ffebfedd361d714ff6cee1ff01b9
- https://git.kernel.org/stable/c/9cc887ac24b7a0598f4042ae9af6b9a33072f75b
- https://git.kernel.org/stable/c/b8ccef048354074a548f108e51d0557d6adfd3a3
- https://git.kernel.org/stable/c/c60676b81fab456b672796830f6d8057058f029c
- https://git.kernel.org/stable/c/c847b28a799733b04574060ab9d00f215970627d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46840.json
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-46840
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixedc847b28a799733b04574060ab9d00f215970627dFixed71291aa7246645ef622621934d2067400380645eFixedc60676b81fab456b672796830f6d8057058f029cFixed728d4d045b628e006b48a448f3326a7194c88d32Fixed9cc887ac24b7a0598f4042ae9af6b9a33072f75bFixed7d1df13bf078ffebfedd361d714ff6cee1ff01b9Fixed03804641ec2d0da4fa088ad21c88e703d151ce16Fixedb8ccef048354074a548f108e51d0557d6adfd3a3
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.19.322
- Type
- ECOSYSTEM
- Events
-
Introduced4.20.0Fixed5.4.284
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.226
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.167
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.110
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.51
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.10.10