CVE-2025-39902
published 2025-10-01CVE-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()…
medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
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.
Affected
30 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.153-1 (bookworm) | linux 6.1.153-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.153-1 (bookworm) | linux 6.1.153-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < 872f2c34ff232af1e65ad2df86d61163c8ffad42 | 872f2c34ff232af1e65ad2df86d61163c8ffad42 |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < f66012909e7bf383fcdc5850709ed5716073fdc4 | f66012909e7bf383fcdc5850709ed5716073fdc4 |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < 7e287256904ee796c9477e3ec92b07f236481ef3 | 7e287256904ee796c9477e3ec92b07f236481ef3 |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < 1f0797f17927b5cad0fb7eced422f9a7c30a3191 | 1f0797f17927b5cad0fb7eced422f9a7c30a3191 |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < 0ef7058b4dc6fcef622ac23b45225db57f17b83f | 0ef7058b4dc6fcef622ac23b45225db57f17b83f |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < dda6ec365ab04067adae40ef17015db447e90736 | dda6ec365ab04067adae40ef17015db447e90736 |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < 3baa1da473e6e50281324ff1d332d1a07a3bb02e | 3baa1da473e6e50281324ff1d332d1a07a3bb02e |
| linux | linux | >= 81819f0fc8285a2a5a921c019e3e3d7b6169d225 < b4efccec8d06ceb10a7d34d7b1c449c569d53770 | b4efccec8d06ceb10a7d34d7b1c449c569d53770 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.244-1 | 5.10.244-1 |
| linux | linux_kernel | >= 0 < 6.1.153-1 | 6.1.153-1 |
| linux | linux_kernel | >= 0 < 6.12.48-1 | 6.12.48-1 |
| linux | linux_kernel | >= 0 < 6.16.6-1 | 6.16.6-1 |
| linux | linux_kernel | >= 0 < 5.15.0-163.173 | 5.15.0-163.173 |
| linux | linux_kernel | >= 0 < 6.8.0-106.106 | 6.8.0-106.106 |
| linux | linux_kernel | >= 2.6.22 < 5.4.299 | 5.4.299 |
| linux | linux_kernel | >= 5.11 < 5.15.192 | 5.15.192 |
| linux | linux_kernel | >= 5.16 < 6.1.151 | 6.1.151 |
| linux | linux_kernel | >= 5.5 < 5.10.243 | 5.10.243 |
| linux | linux_kernel | >= 6.13 < 6.16.6 | 6.16.6 |
| linux | linux_kernel | >= 6.2 < 6.6.105 | 6.6.105 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM