CVE-2025-38269

btrfs: exit after state insertion failure at btrfs_convert_extent_bit()

MEDIUM
5.5
CVSS Score
Published: July 10, 2025 at 07:41 AM UTC
Updated: June 17, 2026 at 09:16 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: btrfs: exit after state insertion failure at btrfs_convert_extent_bit() If insert_state() state failed it returns an error pointer and we call extent_io_tree_panic() which will trigger a BUG() call. However if CONFIG_BUG is disabled, which is an uncommon and exotic scenario, then we fallthrough and call cache_state() which will dereference the error pointer, resulting in an invalid memory access. So jump to the 'out' label after calling extent_io_tree_panic(), it also makes the code more clear besides dealing with the exotic scenario where CONFIG_BUG is disabled.

Affected

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

v < 6.12.346.13 ≤ v < 6.15.36.7 ≤ v < 6.12.346.7 ≤ v < 6.15.36.7 ≤ v < 6.166.7c91ea4bfa6dda549295ea7c15dfc990094d1fcd3
Vendor states this is fixed in 3bf179e36da917c5d9bec71c714573ed1649b7c1 (fixed)
Vendor states this is fixed in 58c50f45e1821a04d61b62514f9bd34afe67c622 (fixed)
Vendor states this is fixed in 8d9d32088e304e2bc444a3087cab0bbbd9951866 (fixed)
Vendor states this is fixed in 6.12.34 (unaffected)
Vendor states this is fixed in 6.15.3 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3bf179e36da917c5d9bec71c714573ed1649b7c1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/58c50f45e1821a04d61b62514f9bd34afe67c622
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8d9d32088e304e2bc444a3087cab0bbbd9951866

CVSS

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

Quick Info

StatusANALYZED
CWE
CWE-476

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