CVE-2024-40909
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
bpf: Fix a potential use-after-free in bpf_link_free()
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a potential use-after-free in bpf_link_free() After commit 1a80dbcb2dba, bpf_link can be freed by link->ops->dealloc_deferred, but the code still tests and uses link->ops->dealloc afterward, which leads to a use-after-free as reported by syzbot. Actually, one of them should be sufficient, so just call one of them instead of both. Also add a WARN_ON() in case of any problematic implementation.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 876941f533e7b47fc69977fc4551c02f2d18af97 | affected | git | 91cff53136daeff50816b0baeafd38a6976f6209 | Unavailable | None listed |
| 1a80dbcb2dbaf6e4c216e62e30fa7d3daa8001ce | affected | git | fa97b8fed9896f1e89cb657513e483a152d4c382 | Unavailable | None listed |
| 1a80dbcb2dbaf6e4c216e62e30fa7d3daa8001ce | affected | git | 2884dc7d08d98a89d8d65121524bb7533183a63a | Unavailable | None listed |
| 5d8d447777564b35f67000e7838e7ccb64d525c8 | affected | git | Unavailable | Unavailable | None listed |
| 6.6.26 | affected | semver | 6.6.35 | Unavailable | None listed |
| 6.8.5 | affected | semver | 6.9 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.9 | Unavailable | None listed |
| 6.6.35 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.9.6 | unaffected | semver | Unavailable | 6.9.* | None listed |
| 6.10 | unaffected | original_commit_for_fix | Unavailable | * | None listed |