7.8
High
CVE-2025-39931 In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Set merge to zero early in…
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Set merge to zero early in af_alg_sendmsg If an error causes af_alg_sendmsg to abort, ctx->merge may contain a garbage value from the previous loop. This may then trigger a crash on the next entry into af_alg_sendmsg when it attempts to do a merge that can't be done. Fix this by setting ctx->merge to zero near the start of the loop.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.17 | earliest → < 6.17 | 6.17 |
| Linux 6.16 | earliest → < 6.16.9 | 6.16.9 |
| Linux 6.12 | earliest → < 6.12.49 | 6.12.49 |
| Linux 6.6 | earliest → < 6.6.108 | 6.6.108 |
| Linux 6.1 | earliest → < 6.1.154 | 6.1.154 |
| Linux 5.15 | earliest → < 5.15.211 | 5.15.211 |
| Linux 5.10 | earliest → < 5.10.260 | 5.10.260 |
| Linux | 2.6.38 | No fix stated |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
Show the 2 other branches Hide the 2 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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