Detections
Analytics
CVE-2022-49548
high
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does not include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline can exceed BPF_MAX_TRAMP_PROGS. When this happens, the assignment '*progs++ = aux->prog' in bpf_trampoline_get_progs() will cause progs array overflow as the progs field in the bpf_tramp_progs struct can only hold at most BPF_MAX_TRAMP_PROGS bpf programs.
References
https://git.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d
https://git.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d
https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737
https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc
https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc