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CVE-2022-29582

Date: April 21, 2022

In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.

Severity Score

Related Resources (13)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677edbcabee849bfdd43f1602bccbecf736a646
https://security-tracker.debian.org/tracker/CVE-2022-29582
https://www.openwall.com/lists/oss-security/2022/04/22/3
https://nvd.nist.gov/vuln/detail/CVE-2022-29582
http://www.openwall.com/lists/oss-security/2022/08/08/3
https://www.debian.org/security/2022/dsa-5127
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3
https://ruia-ruia.github.io/2022/08/05/CVE-2022-29582-io-uring/
https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a646
http://www.openwall.com/lists/oss-security/2022/04/22/4
https://github.com/Ruia-ruia/CVE-2022-29582-Exploit
http://www.openwall.com/lists/oss-security/2024/04/24/3
https://www.mend.io/vulnerability-database/CVE-2022-29582

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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