CVE-2024-36964

fs/9p: only translate RWX permissions for plain 9P2000

State: Published
Severity: 8.8 High
Published: Jun 3, 2024
Updated: Aug 5, 2026
Reserved: May 30, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

fs/9p: only translate RWX permissions for plain 9P2000

Garbage in plain 9P2000's perm bits is allowed through, which causes it to be able to set (among others) the suid bit. This was presumably not the intent since the unix extended bits are handled explicitly and conditionally on .u.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	45089142b1497dab2327d60f6c71c40766fc3ea4 to before e90bc596a74bb905e0a45bf346038c3f9d1e868dAffected 45089142b1497dab2327d60f6c71c40766fc3ea4 to before df1962a199783ecd66734d563caf0fedecf08f96Affected 45089142b1497dab2327d60f6c71c40766fc3ea4 to before 5a605930e19f451294bd838754f7d66c976a8a2cAffected 45089142b1497dab2327d60f6c71c40766fc3ea4 to before ad4f65328661392de74e3608bb736fedf3b67e32Affected 45089142b1497dab2327d60f6c71c40766fc3ea4 to before ca9b5c81f0c918c63d73d962ed8a8e231f840bc8Affected 45089142b1497dab2327d60f6c71c40766fc3ea4 to before e55c601af3b1223a84f9f27f9cdbd2af5e203bf3Affected 45089142b1497dab2327d60f6c71c40766fc3ea4 to before 157d468e34fdd3cb1ddc07c2be32fb3b02826b02Affected 45089142b1497dab2327d60f6c71c40766fc3ea4 to before cd25e15e57e68a6b18dc9323047fe9c68b99290bAffected 29a3e8657d2a2640384166e3fe29a086d235fc33Affected 3.0.5 to before 3.1Affected
LinuxLinux	3.1Affected before 3.1Not affected 4.19.314 through 4.19.Not affected 5.4.276 through 5.4.Not affected 5.10.217 through 5.10.Not affected 5.15.159 through 5.15.Not affected 6.1.91 through 6.1.Not affected 6.6.31 through 6.6.Not affected 6.8.10 through 6.8.*Not affected 6.9 and laterNot affected

Product

Versions

LinuxLinux

45089142b1497dab2327d60f6c71c40766fc3ea4 to before e90bc596a74bb905e0a45bf346038c3f9d1e868dAffected
45089142b1497dab2327d60f6c71c40766fc3ea4 to before df1962a199783ecd66734d563caf0fedecf08f96Affected
45089142b1497dab2327d60f6c71c40766fc3ea4 to before 5a605930e19f451294bd838754f7d66c976a8a2cAffected
45089142b1497dab2327d60f6c71c40766fc3ea4 to before ad4f65328661392de74e3608bb736fedf3b67e32Affected
45089142b1497dab2327d60f6c71c40766fc3ea4 to before ca9b5c81f0c918c63d73d962ed8a8e231f840bc8Affected
45089142b1497dab2327d60f6c71c40766fc3ea4 to before e55c601af3b1223a84f9f27f9cdbd2af5e203bf3Affected
45089142b1497dab2327d60f6c71c40766fc3ea4 to before 157d468e34fdd3cb1ddc07c2be32fb3b02826b02Affected
45089142b1497dab2327d60f6c71c40766fc3ea4 to before cd25e15e57e68a6b18dc9323047fe9c68b99290bAffected
29a3e8657d2a2640384166e3fe29a086d235fc33Affected
3.0.5 to before 3.1Affected

LinuxLinux

3.1Affected
before 3.1Not affected
4.19.314 through 4.19.*Not affected
5.4.276 through 5.4.*Not affected
5.10.217 through 5.10.*Not affected
5.15.159 through 5.15.*Not affected
6.1.91 through 6.1.*Not affected
6.6.31 through 6.6.*Not affected
6.8.10 through 6.8.*Not affected
6.9 and laterNot affected

References

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