CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2022-48770
Medium (5.5) in linux linux kernel. EPSS 0.2% chance of exploitation in the next 30 days.
In the Linux kernel, the following vulnerability has been resolved:
bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
task_pt_regs() can return NULL on powerpc for kernel threads. This is
then used in __bpf_get_stack() to check for user mode, resulting in a
kernel oops. Guard against this by checking return value of
task_pt_regs() before trying to obtain the call chain.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
- CWE
- CWE-476
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/0bcd484587b3b3092e448d27dc369e347e1810c3
- https://git.kernel.org/stable/c/b82ef4985a6d05e80f604624332430351df7b79a
- https://git.kernel.org/stable/c/b992f01e66150fc5e90be4a96f5eb8e634c8249e
- https://git.kernel.org/stable/c/ff6bdc205fd0a83bd365405d4e31fb5905826996
- https://git.kernel.org/stable/c/0bcd484587b3b3092e448d27dc369e347e1810c3