CVE-2024-26591
mediumpriority · track · 22EPSS 0.002 · 14 %ileDEEURUUSEPSS · scored 2026-10-27
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix re-attachment branch in bpf_tracing_prog_attach The following case can cause a crash due to missing attach_btf: 1) load rawtp program 2) load fentry program with rawtp as target_fd 3) create tracing link for fentry program with target_fd = 0 4) repeat 3 In the end we have: - prog->aux->dst_trampoline == NULL - tgt_prog == NULL (because we did not provide target_fd to link_create) - prog->aux->attach_btf == NULL (the program was loaded with attach_prog_fd=X) - the program was loaded for tgt_prog but we have no way to find out which one BUG: kernel NULL pointer dereference, address: 0000000000000058 Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x15b/0x430 ? fixup_exception+0x22/0x330 ? exc_page_fault+0x6f/0x170 ? asm_exc_page_fault+0x22/0x30 ? bpf_tracing_prog_attach+0x279/0x560 ? btf_obj_id+0x5/0x10 bpf_tracing_prog_attach+0x439/0x560 __sys_bpf+0x1cf4/0x2de0 __x64_sys_bpf+0x1c/0x30 do_syscall_64+0x41/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 Return -EINVAL in this situation.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (49)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-0473Linux Kernel: Mehrere SchwachstellenDeutsch2024-02-22csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen oder einen nicht spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (17)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-26591/cnnvd
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=50ae82f080cf87e84828f066c31723b781d68f5bPatchcnnvd
- https://git.kernel.org/stable/c/50ae82f080cf87e84828f066c31723b781d68f5bcnnvd
- https://git.kernel.org/stable/c/6cc9c0af0aa06f781fa515a1734b1a4239dfd2c0cnnvd
- https://git.kernel.org/stable/c/715d82ba636cb3629a6e18a33bb9dbe53f9936eecnnvd
- https://git.kernel.org/stable/c/8c8bcd45e9b10eef12321f08d2e5be33d615509ccnnvd
- https://git.kernel.org/stable/c/a7b98aa10f895e2569403896f2d19b73b6c95653cnnvd
- https://git.kernel.org/stable/c/50ae82f080cf87e84828f066c31723b781d68f5benisa_euvd
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