7.5
High
CVE-2021-47486 In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix potential NULL dereference The…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 5.15 | earliest → < 5.15 | 5.15 |
| Linux 5.14 | earliest → < 5.14.16 | 5.14.16 |
| Linux 5.10 | earliest → < 5.10.77 | 5.10.77 |
| Linux | 5.7 | No fix stated |
| linux_kernel 27 | earliest → 27de809a3d83 | No fix stated |
| linux_kernel 5.15 | earliest → < 5.15 | 5.15 |
References
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
Timeline
- Published
- Last modified
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