Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: block: don't revert iter for -EIOCBQUEUED blkdev_read_iter() has a few odd checks, like gating the position and count adjustment on whether or not the result is bigger-than-or-equal to zero (where bigger than makes more sense), and not checking the return value of blkdev_direct_IO() before doing an iov_iter_revert(). The latter can lead to attempting to revert with a negative value, which when passed to iov_iter_revert() as an unsigned value will lead to throwing a WARN_ON() because unroll is bigger than MAX_RW_COUNT. Be sane and don't revert for -EIOCBQUEUED, like what is done in other spots.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3e1f941dd9f33776b3df4e30f741fe445ff773f3 before 6c26619effb1b4cb7d20b4e666ab8f71f6a53ccb; affected 3e1f941dd9f33776b3df4e30f741fe445ff773f3 before 84671b0630ccb46ae9f1f99a45c7d63ffcd6a474; affected 3e1f941dd9f33776b3df4e30f741fe445ff773f3 before 68f16d3034a06661245ecd22f0d586a8b4e7c473; affected 3e1f941dd9f33776b3df4e30f741fe445ff773f3 before a58f136bad29f9ae721a29d98c042fddbee22f77; affected 3e1f941dd9f33776b3df4e30f741fe445ff773f3 before b13ee668e8280ca5b07f8ce2846b9957a8a10853 |
| Linux / Linux | affected 5.17; unaffected 0 before 5.17; unaffected 6.1.129 through 6.1.*; unaffected 6.6.78 through 6.6.*; unaffected 6.12.14 through 6.12.*; unaffected 6.13.3 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/6c26619effb1b4cb7d20b4e666ab8f71f6a53ccb
- https://git.kernel.org/stable/c/84671b0630ccb46ae9f1f99a45c7d63ffcd6a474
- https://git.kernel.org/stable/c/68f16d3034a06661245ecd22f0d586a8b4e7c473
- https://git.kernel.org/stable/c/a58f136bad29f9ae721a29d98c042fddbee22f77
- https://git.kernel.org/stable/c/b13ee668e8280ca5b07f8ce2846b9957a8a10853
ADP enrichment
No English description supplied.
No English description supplied.
No English description supplied.
No references supplied.