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CVE-2026-93262

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

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.15%Chance of exploitation activity in the next 30 days, higher than 3% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in8914c3d40870f16429a326e97e4016bedc6ede4cAlso 455b56209f9615c3902dcc398dd867abb5ade3ab, 371f7a1b392edc8b7cf449cc7713179b588f2d0eCVE List
Published24 Sep 2026Updated 19 Oct 2026CVE List

What fixes it

  • 8914c3d40870f16429a326e97e4016bedc6ede4cLinuxCVE List
  • 455b56209f9615c3902dcc398dd867abb5ade3abLinuxCVE List
  • 371f7a1b392edc8b7cf449cc7713179b588f2d0eLinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 18

  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before cf01f9413565e86673baf927291a088b6975692bCVE List
  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before e7505842f1329ece90cb9ea0db87772aeca44052CVE List
  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before b5123bf667ac29ddd8106f9ca7cc01316513ae66CVE List
  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before e77c80670f2c2bf491da9b173931e1da4677c23aCVE List
  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before 8914c3d40870f16429a326e97e4016bedc6ede4cCVE List
  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before 455b56209f9615c3902dcc398dd867abb5ade3abCVE List
  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before fcf21df7d3c50c8ebeb0757df5d21b02dcae4218CVE List
  • Linuxaffected: 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 before 371f7a1b392edc8b7cf449cc7713179b588f2d0eCVE List
  • Linuxaffected: 4.16CVE List
  • Linuxunaffected: all versions before 4.16CVE List
  • Linuxunaffected: 5.10.270 through 5.10.*CVE List
  • Linuxunaffected: 5.15.221 through 5.15.*CVE List
  • Linuxunaffected: 6.1.188 through 6.1.*CVE List
  • Linuxunaffected: 6.6.157 through 6.6.*CVE List
  • Linuxunaffected: 6.12.110 through 6.12.*CVE List
  • Linuxunaffected: 6.18.52 through 6.18.*CVE List
  • Linuxunaffected: 7.2.6 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 8