In the Linux kernel, the following vulnerability has been resolved:
btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range
If we get -ENOMEM while dropping file extent items in a given range, at
btrfs_drop_extents(), due to failure to allocate memory when attempting to
increment the reference count for an extent or drop the reference count,
we handle it with a BUG_ON(). This is excessive, instead we can simply
abort the transaction and return the error to the caller. In fact most
callers of btrfs_drop_extents(), directly or indirectly, already abort
the transaction if btrfs_drop_extents() returns any error.
Also, we already have error paths at btrfs_drop_extents() that may return
-ENOMEM and in those cases we abort the transaction, like for example
anything that changes the b+tree may return -ENOMEM due to a failure to
allocate a new extent buffer when COWing an existing extent buffer, such
as a call to btrfs_duplicate_item() for example.
So replace the BUG_ON() calls with proper logic to abort the transaction
and return the error.
References
Configurations
Configuration 1 (hide)
|
History
04 Dec 2025, 18:53
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-617 | |
| First Time |
Linux
Linux linux Kernel |
|
| References | () https://git.kernel.org/stable/c/162d053e15fe985f754ef495a96eb3db970c43ed - Patch | |
| References | () https://git.kernel.org/stable/c/1baf3370e2dc5e6bd1368348736189457dab2a27 - Patch | |
| References | () https://git.kernel.org/stable/c/50f993da945074b2a069da099a0331b23a0c89a0 - Patch | |
| References | () https://git.kernel.org/stable/c/7fbcb635c8fc927d139f3302babcf1b42c09265c - Patch |
15 Sep 2025, 15:22
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-15 15:15
Updated : 2025-12-04 18:53
NVD link : CVE-2022-50293
Mitre link : CVE-2022-50293
CVE.ORG link : CVE-2022-50293
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-617
Reachable Assertion