CVE-2024-56675
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 UAF via mismatching bpf_prog/attachment RCU flavors
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors Uprobes always use bpf_prog_run_array_uprobe() under tasks-trace-RCU protection. But it is possible to attach a non-sleepable BPF program to a uprobe, and non-sleepable BPF programs are freed via normal RCU (see __bpf_prog_put_noref()). This leads to UAF of the bpf_prog because a normal RCU grace period does not imply a tasks-trace-RCU grace period. Fix it by explicitly waiting for a tasks-trace-RCU grace period after removing the attachment of a bpf_prog to a perf_event.
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) |
|---|---|---|---|---|---|
| 8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 | affected | git | 9245459a992d22fe0e92e988f49db1fec82c184a | Unavailable | None listed |
| 8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 | affected | git | f9f85df30118f3f4112761e6682fc60ebcce23e5 | Unavailable | None listed |
| 8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 | affected | git | 9b53d2c2a38a1effc341d99be3f99fa7ef17047d | Unavailable | None listed |
| 8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 | affected | git | ef1b808e3b7c98612feceedf985c2fbbeb28f956 | 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) |
|---|---|---|---|---|---|
| 6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.0 | Unavailable | None listed |
| 6.1.121 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.67 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.6 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |