CVE-2025-40050
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Skip scalar adjustment for BPF_NEG if dst is a pointer In check_alu_op(), the verifier currently calls check_reg_arg() and adjust_scalar_min_max_vals() unconditionally for BPF_NEG operations. However, if the destination register holds a pointer, these scalar adjustments are unnecessary and potentially incorrect. This patch adds a check to skip the adjustment logic when the destination register contains a pointer.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 28, 2025
First seenOct 28, 2025
How to fix
Update
- Linux Linuxb9ef4963227246b9222e1559ddeec8e7af63e6c6, 34904582b502a86fdb4d7984b12cacd2faabbe0d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | aced132599b3c8884c050218d4c48eef203678f6 ≤ v < b9ef4963227246b9222e1559ddeec8e7af63e6c6, aced132599b3c8884c050218d4c48eef203678f6 ≤ v < 34904582b502a86fdb4d7984b12cacd2faabbe0d, 6.17 | b9ef4963227246b9222e1559ddeec8e7af63e6c6, 34904582b502a86fdb4d7984b12cacd2faabbe0d |
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