CVE-2026-93262

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

State: Published
Severity: 7.8 High
Published: Sep 24, 2026
Updated: Oct 19, 2026
Reserved: Sep 17, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before cf01f9413565e86673baf927291a088b6975692bAffected 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before e7505842f1329ece90cb9ea0db87772aeca44052Affected 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before b5123bf667ac29ddd8106f9ca7cc01316513ae66Affected 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before e77c80670f2c2bf491da9b173931e1da4677c23aAffected 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before 8914c3d40870f16429a326e97e4016bedc6ede4cAffected 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before 455b56209f9615c3902dcc398dd867abb5ade3abAffected 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before fcf21df7d3c50c8ebeb0757df5d21b02dcae4218Affected 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before 371f7a1b392edc8b7cf449cc7713179b588f2d0eAffected
LinuxLinux	4.16Affected before 4.16Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.52 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before cf01f9413565e86673baf927291a088b6975692bAffected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before e7505842f1329ece90cb9ea0db87772aeca44052Affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before b5123bf667ac29ddd8106f9ca7cc01316513ae66Affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before e77c80670f2c2bf491da9b173931e1da4677c23aAffected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before 8914c3d40870f16429a326e97e4016bedc6ede4cAffected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before 455b56209f9615c3902dcc398dd867abb5ade3abAffected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before fcf21df7d3c50c8ebeb0757df5d21b02dcae4218Affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 to before 371f7a1b392edc8b7cf449cc7713179b588f2d0eAffected

LinuxLinux

4.16Affected
before 4.16Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.52 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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