CVE-2025-22029

exec: fix the racy usage of fs_struct->in_exec

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved: exec: fix the racy usage of fs_struct->in_exec check_unsafe_exec() sets fs->in_exec under cred_guard_mutex, then execve()
paths clear fs->in_exec lockless. This is fine if exec succeeds, but if it
fails we have the following race: T1 sets fs->in_exec = 1, fails, drops cred_guard_mutex T2 sets fs->in_exec = 1 T1 clears fs->in_exec T2 continues with fs->in_exec == 0 Change fs/exec.c to clear fs->in_exec with cred_guard_mutex held.

In the Linux kernel, the following vulnerability has been resolved: exec: fix the racy usage of fs_struct->in_exec check_unsafe_exec() sets fs->in_exec under cred_guard_mutex, then execve() paths clear fs->in_exec lockless. This is fine if exec succeeds, but if it fails we have the following race: T1 sets fs->in_exec = 1, fails, drops cred_guard_mutex T2 sets fs->in_exec = 1 T1 clears fs->in_exec T2 continues with fs->in_exec == 0 Change fs/exec.c to clear fs->in_exec with cred_guard_mutex held.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2024-12-29 CVE Reserved
2025-04-16 CVE Published
2025-04-16 CVE Updated
2025-04-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/753a620a7f8e134b444f89fe90873234e894e21a	2025-04-10
https://git.kernel.org/stable/c/e2d8e7bd3314485e0b3b08380c659b3d1d67ed6a	2025-04-10
https://git.kernel.org/stable/c/a6b5070721503fb6021ebed51c925ffc66b1c5ab	2025-04-10
https://git.kernel.org/stable/c/b519f2e5800fe2391b7545ba6889df795828e885	2025-04-10
https://git.kernel.org/stable/c/af7bb0d2ca459f15cb5ca604dab5d9af103643f0	2025-03-25

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.87 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.87"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.12.23 Search vendor "Linux" for product "Linux Kernel" and version " < 6.12.23"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.13.11 Search vendor "Linux" for product "Linux Kernel" and version " < 6.13.11"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.14.2 Search vendor "Linux" for product "Linux Kernel" and version " < 6.14.2"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.15-rc1 Search vendor "Linux" for product "Linux Kernel" and version " < 6.15-rc1"		en		Affected