In the Linux kernel, the following vulnerability has been resolved:
btrfs: add a sanity check for btrfs root in btrfs_search_slot()
Syzbot reports a null-ptr-deref in btrfs_search_slot().
The reproducer is using rescue=ibadroots, and the extent tree root is
corrupted thus the extent tree is NULL.
When scrub tries to search the extent tree to gather the needed extent
info, btrfs_search_slot() doesn't check if the target root is NULL or
not, resulting the null-ptr-deref.
Add sanity check for btrfs root before using it in btrfs_search_slot().
References
Configurations
Configuration 1 (hide)
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History
09 Jan 2025, 21:00
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6 - Patch | |
| References | () https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece - Patch | |
| References | () https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab - Patch | |
| References | () https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b - Patch | |
| References | () https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4 - Patch | |
| CWE | CWE-476 | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
08 Jan 2025, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-01-08 18:15
Updated : 2025-01-09 21:00
NVD link : CVE-2024-56774
Mitre link : CVE-2024-56774
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference