CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
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.
Засегнати продукти
- Linux Linux: 605c8d8f9966fcd2f0b858fabebe416fc83f2209 преди 1757598b3804f7cb35b5b5e02558f6d8b9c2f254; 8f873cc3f67f2257493063e57d0caf07ef889ee9 преди a5c6316052f0ff1467221ecf2996cbab0a496b1e; 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 преди d02035c5eb4955616efc5c6dbe3d98f19d798cb2; 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 преди 094f0a895cf97a993d06d5dc4c12e7cb7da845a5; 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 преди 48a0209d8da0d90a7b0a0db19d1ff88027b13781; 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 преди 61aaa8782bec59ecffd22e030f54ef9351bcabf9; 028480eaf2a1401e914a1fa1a4a21d877cf0ae30; 6.1.72 преди 6.1.191; 6.6.2 преди 6.6.160; 6.5.12 преди 6.6
- Linux Linux: 6.7; преди 6.7; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.2.6 до 7.2.*; 7.3 до *
История
- 17 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-92485
- https://nvd.nist.gov/vuln/detail/CVE-2026-92485
- https://git.kernel.org/stable/c/1757598b3804f7cb35b5b5e02558f6d8b9c2f254
- https://git.kernel.org/stable/c/a5c6316052f0ff1467221ecf2996cbab0a496b1e
- https://git.kernel.org/stable/c/d02035c5eb4955616efc5c6dbe3d98f19d798cb2
- https://git.kernel.org/stable/c/094f0a895cf97a993d06d5dc4c12e7cb7da845a5
- https://git.kernel.org/stable/c/48a0209d8da0d90a7b0a0db19d1ff88027b13781
- https://git.kernel.org/stable/c/61aaa8782bec59ecffd22e030f54ef9351bcabf9