CVE-2026-92485
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
bpf: Fix WARNING in bpf_tracing_link_release
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix WARNING in bpf_tracing_link_release The trampoline could be corrupted by the blindly 'tr->flags = BPF_TRAMP_F_TAIL_CALL_CTX' in verifier. 1. A fexit attached to a tail_call_reachable prog. 'tr->flags' became 'BPF_TRAMP_F_CALL_ORIG | BPF_TRAMP_F_TAIL_CALL_CTX'. And, the trampoline would poke the target prog's nop insn using jmp insn instead of call insn. 2. Another fexit loaded with the same tail_call_reachable prog target. 'tr->flags' became 'BPF_TRAMP_F_TAIL_CALL_CTX'. 3. Close the first fexit link. Due to no BPF_TRAMP_F_CALL_ORIG in 'tr->flags', the trampoline will fail to restore the prog's nop insn using call insn. [ 3.410719] WARNING: kernel/bpf/syscall.c:3551 at bpf_tracing_link_release+0x53/0x60, CPU#1: test_progs/98 ... [ 3.428793] bpf_link_free+0x58/0x130 [ 3.429293] bpf_link_release+0x23/0x30 Fix the warning by updating 'tr->flags' with '|=' and lock.
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) |
|---|---|---|---|---|---|
| 8f873cc3f67f2257493063e57d0caf07ef889ee9 | affected | git | a5c6316052f0ff1467221ecf2996cbab0a496b1e | Unavailable | None listed |
| 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 | affected | git | d02035c5eb4955616efc5c6dbe3d98f19d798cb2 | Unavailable | None listed |
| 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 | affected | git | 094f0a895cf97a993d06d5dc4c12e7cb7da845a5 | Unavailable | None listed |
| 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 | affected | git | 48a0209d8da0d90a7b0a0db19d1ff88027b13781 | Unavailable | None listed |
| 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 | affected | git | 61aaa8782bec59ecffd22e030f54ef9351bcabf9 | Unavailable | None listed |
| 605c8d8f9966fcd2f0b858fabebe416fc83f2209 | affected | git | Unavailable | Unavailable | None listed |
| 028480eaf2a1401e914a1fa1a4a21d877cf0ae30 | affected | git | Unavailable | Unavailable | None listed |
| 6.6.2 | affected | semver | 6.6.160 | Unavailable | None listed |
| 6.1.72 | affected | semver | 6.2 | Unavailable | None listed |
| 6.5.12 | affected | semver | 6.6 | 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) |
|---|---|---|---|---|---|
| 6.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.7 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.114 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.57 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |