CVE-2021-47486
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix potential NULL dereference The bpf_jit_binary_free() function requires a non-NULL argument. When the RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps, jit_data->header will be NULL, which triggers a NULL dereference. Avoid this by checking the argument, prior calling the function.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-47486
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-47486.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.15.3-1 |
| debian | bullseye | fixed | 5.10.84-1 |
| debian | forky | fixed | 5.15.3-1 |
| debian | sid | fixed | 5.15.3-1 |
| debian | trixie | fixed | 5.15.3-1 |
References
Verify integrity in audit chain (admin only). AS-IS.