Tracker / CVE-2025-39902
CVE-2025-39902
In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid accessing metadata when pointer is invalid in object_err() object_err() reports details of an object for further debugging, such as the freelist pointer, redzone, etc. However, if the pointer is invalid, attempting to access object metadata can lead to a crash since it does not point to a valid object. One known path to the crash is when alloc_consistency_checks() determines the pointer to the allocated object is invalid because of a freelist corruption, and calls object_err() to report it. The debug code should report and handle the corruption gracefully and not crash in the process. In case the pointer is NULL or check_valid_pointer() returns false for the pointer, only print the pointer value and skip accessing metadata.
Prodotti e versioni affette
| debian | debian_linux |
|---|---|
| linux | linux_kernel |
| linux | linux_kernel · 2.6.22 → 5.4.299 |
| linux | linux_kernel · 5.11 → 5.15.192 |
| linux | linux_kernel · 5.16 → 6.1.151 |
| linux | linux_kernel · 5.5 → 5.10.243 |
| linux | linux_kernel · 6.13 → 6.16.6 |
| linux | linux_kernel · 6.2 → 6.6.105 |
| linux | linux_kernel · 6.7 → 6.12.46 |