CVE-2021-47486

Published: May 22, 2024

Modified: May 11, 2026

PUBLISHED

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.

Vendor	Product	Versions
Linux	Linux	affected `ca6cb5447ceca6a87d6b62c9e5d41042c34f7ffa - < cac6b043cea3e120f4fccec16f7381747cbfdc0d` affected `ca6cb5447ceca6a87d6b62c9e5d41042c34f7ffa - < e1b80a5ebe5431caeb20f88c32d4a024777a2d41` affected `ca6cb5447ceca6a87d6b62c9e5d41042c34f7ffa - < 27de809a3d83a6199664479ebb19712533d6fd9b`
Linux	Linux	affected `5.7` unaffected `0 - < 5.7` unaffected `5.10.77 - <= 5.10.` unaffected `5.14.16 - <= 5.14.` unaffected `5.15 - <= *`

References

https://git.kernel.org/stable/c/cac6b043cea3e120f4fccec16f7381747cbfdc0d

https://git.kernel.org/stable/c/e1b80a5ebe5431caeb20f88c32d4a024777a2d41

https://git.kernel.org/stable/c/27de809a3d83a6199664479ebb19712533d6fd9b

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CVE-2021-47486

Description

Affected Products

References