Tracker / CVE-2025-21832
CVE-2025-21832
Alta 7.8
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.
Prodotti e versioni affette
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.17.1 → 6.1.129 |
| linux | linux_kernel · 6.13 → 6.13.3 |
| linux | linux_kernel · 6.2 → 6.6.78 |
| linux | linux_kernel · 6.7 → 6.12.14 |
Analisi
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