Linux Kernel up to 7.2.5 raid5-ppl drivers/md/raid5-ppl.c ppl_do_flush use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$5k-$25k0.11+

Summaryinfo

A vulnerability, which was classified as very critical, was found in Linux Kernel up to 7.2.5. The affected element is the function ppl_do_flush of the file drivers/md/raid5-ppl.c of the component raid5-ppl. Such manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2026-93262. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.5 and classified as very critical. Affected by this issue is the function ppl_do_flush of the file drivers/md/raid5-ppl.c of the component raid5-ppl. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-93262 since 09/17/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/24/2026).

Upgrading to version 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch cf01f9413565e86673baf927291a088b6975692b/e7505842f1329ece90cb9ea0db87772aeca44052/b5123bf667ac29ddd8106f9ca7cc01316513ae66/e77c80670f2c2bf491da9b173931e1da4677c23a/8914c3d40870f16429a326e97e4016bedc6ede4c/455b56209f9615c3902dcc398dd867abb5ade3ab/fcf21df7d3c50c8ebeb0757df5d21b02dcae4218/371f7a1b392edc8b7cf449cc7713179b588f2d0e is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.270/5.15.221/6.1.188/6.6.157/6.12.110/6.18.52/7.2.6/7.3-rc1
Patch: cf01f9413565e86673baf927291a088b6975692b/e7505842f1329ece90cb9ea0db87772aeca44052/b5123bf667ac29ddd8106f9ca7cc01316513ae66/e77c80670f2c2bf491da9b173931e1da4677c23a/8914c3d40870f16429a326e97e4016bedc6ede4c/455b56209f9615c3902dcc398dd867abb5ade3ab/fcf21df7d3c50c8ebeb0757df5d21b02dcae4218/371f7a1b392edc8b7cf449cc7713179b588f2d0e

Timelineinfo

09/17/2026 CVE reserved
09/24/2026 +7 days Advisory disclosed
09/24/2026 +0 days VulDB entry created
09/24/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-93262 (🔒)
GCVE (CVE): GCVE-0-2026-93262
GCVE (VulDB): GCVE-100-409712

Entryinfo

Created: 09/24/2026 20:24
Changes: 09/24/2026 20:24 (60)
Complete: 🔍
Cache ID: 216::103

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