CVE-2022-50217

fuse: write inode in fuse_release()

MEDIUM
5.5
CVSS Score
Published: June 18, 2025 at 11:03 AM UTC
Updated: June 17, 2026 at 05:22 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: fuse: write inode in fuse_release() A race between write(2) and close(2) allows pages to be dirtied after fuse_flush -> write_inode_now(). If these pages are not flushed from fuse_release(), then there might not be a writable open file later. So any remaining dirty pages must be written back before the file is released. This is a partial revert of the blamed commit.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.16 ≤ v < 5.18.185.16 ≤ v < 5.19.25.16 ≤ v < 6.05.19 ≤ v < 5.19.236ea23374d1f7b6a9d96a2b61d38830fdf23e45d5.16
Vendor states this is fixed in 035ff33cf4db101250fb980a3941bf078f37a544 (fixed)
Vendor states this is fixed in 4bd9d5d20f344d015422969302d12653c903c271 (fixed)
Vendor states this is fixed in 5ccb0420b7c9334ab8122037847101931b899301 (fixed)
Vendor states this is fixed in 5.16 (unaffected)
Vendor states this is fixed in 5.18.18 (unaffected)
Vendor states this is fixed in 5.19.2 (unaffected)
Vendor states this is fixed in 6.0 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/035ff33cf4db101250fb980a3941bf078f37a544
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4bd9d5d20f344d015422969302d12653c903c271
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5ccb0420b7c9334ab8122037847101931b899301

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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