CVE-2021-47486
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Linux Kernel
PublishedMay 22, 2024
First seenMay 22, 2024
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel5.10.77, 5.14.16 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.7 ≤ v < 5.10.77, 5.11 ≤ v < 5.14.16, 5.15 | 5.10.77, 5.14.16 |
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