What’s Vulnerable › Vulnerabilities

CVE-2026-93262: md/raid5-ppl: fix use-after-free in ppl_do_flush()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-24 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: md/raid5-ppl: fix use-after-free in ppl_do_flush() The loop in ppl_do_flush() continues iterating after calling ppl_io_unit_finished(), touching io->pending_flushes and leading to a use-after-free. Add a break statement to stop the loop once io is freed.

Affected products

• Linux kernel: 4.16 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/371f7a1b392edc8b7cf449cc7713179b588f2d0e
• https://git.kernel.org/stable/c/455b56209f9615c3902dcc398dd867abb5ade3ab
• https://git.kernel.org/stable/c/8914c3d40870f16429a326e97e4016bedc6ede4c
• https://git.kernel.org/stable/c/b5123bf667ac29ddd8106f9ca7cc01316513ae66
• https://git.kernel.org/stable/c/cf01f9413565e86673baf927291a088b6975692b
• https://git.kernel.org/stable/c/e7505842f1329ece90cb9ea0db87772aeca44052
• https://git.kernel.org/stable/c/e77c80670f2c2bf491da9b173931e1da4677c23a
• https://git.kernel.org/stable/c/fcf21df7d3c50c8ebeb0757df5d21b02dcae4218

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