CVE-2026-74376
md/raid10: reset read_slot when reusing r10bio for discard
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: md/raid10: reset read_slot when reusing r10bio for discard put_all_bios() always drops devs[i].bio, but it only drops devs[i].repl_bio when r10_bio->read_slot < 0. If discard reuses an r10bio that was previously used for a read, read_slot can still be non-negative, and discard cleanup can skip bio_put() on repl_bio. Reset read_slot to -1 when preparing an r10bio for discard so the replacement bio is always released correctly.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
d30588b2731fb01e1616cf16c3fe79a1443e29aa < 3cb2a606ce4902eceabe68338df0653312f861f8 d30588b2731fb01e1616cf16c3fe79a1443e29aa < 561c9711e4f545d6464a023168bdee03b00fa945 d30588b2731fb01e1616cf16c3fe79a1443e29aa < ce3030e92f14362880055de5fe3c258971118853 d30588b2731fb01e1616cf16c3fe79a1443e29aa < 742e4afd247d9c972695227716b03d432a7e1d26 d30588b2731fb01e1616cf16c3fe79a1443e29aa < b7313f23ea5a79b199a007bfad64a866cc2c22e7 d30588b2731fb01e1616cf16c3fe79a1443e29aa < eb04e3e9c14ed15914f5fd2eae8b6435f54f095f d30588b2731fb01e1616cf16c3fe79a1443e29aa < 6b8a26af065ddc93de2aa5c9f0df98dce9723442
Linux / Linux
5.13
References
git.kernel.org: https://git.kernel.org/stable/c/3cb2a606ce4902eceabe68338df0653312f861f8 git.kernel.org: https://git.kernel.org/stable/c/561c9711e4f545d6464a023168bdee03b00fa945 git.kernel.org: https://git.kernel.org/stable/c/ce3030e92f14362880055de5fe3c258971118853 git.kernel.org: https://git.kernel.org/stable/c/742e4afd247d9c972695227716b03d432a7e1d26 git.kernel.org: https://git.kernel.org/stable/c/b7313f23ea5a79b199a007bfad64a866cc2c22e7 git.kernel.org: https://git.kernel.org/stable/c/eb04e3e9c14ed15914f5fd2eae8b6435f54f095f git.kernel.org: https://git.kernel.org/stable/c/6b8a26af065ddc93de2aa5c9f0df98dce9723442