High · published July 25, 2025
In the Linux kernel, the following vulnerability has been resolved:
nvmet: fix memory leak of bio integrity
If nvmet receives commands with metadata there is a continuous memory
leak of kmalloc-128 slab or more precisely bio->bi_integrity.
Since commit bf4c89fc8797 ("block: don't call bio_uninit from bio_endio")
each user of bio_init has to use bio_uninit as well. Otherwise the bio
integrity is not getting free. Nvmet uses bio_init for inline bios.
Uninit the inline bio to complete deallocation of integrity in bio.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 6.10.10, < 6.12.37 | 6.12.37 |
| linux/linux_kernel | ≥ 6.13, < 6.15.6 | 6.15.6 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |