Threats Tagged 'ubuntu-cve-2025-21832'
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Threats Tagged 'ubuntu-cve-2025-21832'
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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. Join the discussion | GCVE Database | 03/06/2025, 17:15:00 UTC Added: 07/21/2026, 20:06:14 UTC |
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