Vulnerability Database
299,038
Total vulnerabilities in the database
CVE-2025-21832
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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.17.1 | 6.1.129 |
| linux / linux_kernel | 6.2 | 6.6.78 |
| linux / linux_kernel | 6.7 | 6.12.14 |
| linux / linux_kernel | 6.13 | 6.13.3 |
| linux / linux_kernel | 5.17 | 5.17.x |
| linux / linux_kernel | 5.17-rc3 | 5.17-rc3.x |
| linux / linux_kernel | 5.17-rc4 | 5.17-rc4.x |
| linux / linux_kernel | 5.17-rc5 | 5.17-rc5.x |
| linux / linux_kernel | 5.17-rc6 | 5.17-rc6.x |
| linux / linux_kernel | 5.17-rc7 | 5.17-rc7.x |
| linux / linux_kernel | 5.17-rc8 | 5.17-rc8.x |
- https://git.kernel.org/stable/c/68f16d3034a06661245ecd22f0d586a8b4e7c473
- https://git.kernel.org/stable/c/6c26619effb1b4cb7d20b4e666ab8f71f6a53ccb
- https://git.kernel.org/stable/c/84671b0630ccb46ae9f1f99a45c7d63ffcd6a474
- https://git.kernel.org/stable/c/a58f136bad29f9ae721a29d98c042fddbee22f77
- https://git.kernel.org/stable/c/b13ee668e8280ca5b07f8ce2846b9957a8a10853
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
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