CVE-2026-98059: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark sched_process_wait argument as nullable do_wait() passes wo->wo_pid to the sched_process_wait tracepoint. kernel_wait4() leaves wo_pid NULL for wait4(-1), and kernel_waitid_prepare() does likewise for waitid(P_ALL). btf_ctx_access() currently types argument 0 as PTR_TO_BTF_ID | PTR_TRUSTED. Without PTR_MAYBE_NULL, the verifier accepts an unchecked dereference. Trusted pointer loads have no fault protection, so a wait for any child can then cause a NULL pointer dereference in JITed BPF code. Add sched_process_wait to raw_tp_null_args[] with argument 0 marked nullable. The verifier rejects an unchecked dereference while preserving access after the program checks the pointer for NULL.

Засегнати продукти

• Linux Linux: b2fc4b17fc13810ef440fb323fad3981cd174985 преди bee862c79cb7e0e5c33b2df2e3a31d164705120d; 838a10bd2ebfe11a60dd67687533a7cfc220cc86 преди 3c03a1b8ded858685a73c1ba4080adef99db4544; 838a10bd2ebfe11a60dd67687533a7cfc220cc86 преди b9205e936dde9a94e93376c8de6195b740bcd5d2; 838a10bd2ebfe11a60dd67687533a7cfc220cc86 преди a453d6e3b8e8e1a321c8744d6189d763af9287d0; 6.12.6 преди 6.12.111
• Linux Linux: 6.13; преди 6.13; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98059
• https://nvd.nist.gov/vuln/detail/CVE-2026-98059
• https://git.kernel.org/stable/c/bee862c79cb7e0e5c33b2df2e3a31d164705120d
• https://git.kernel.org/stable/c/3c03a1b8ded858685a73c1ba4080adef99db4544
• https://git.kernel.org/stable/c/b9205e936dde9a94e93376c8de6195b740bcd5d2
• https://git.kernel.org/stable/c/a453d6e3b8e8e1a321c8744d6189d763af9287d0