Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 42437a6386ffeaaf200731e73d723ea491f3fe7d before c71d114ef68c95da5a82ec85a721ab31f5bd905b; affected 42437a6386ffeaaf200731e73d723ea491f3fe7d before db66fb87c21e8ae724886e6a464dcbac562a64c6; affected 42437a6386ffeaaf200731e73d723ea491f3fe7d before 757171d1369b3b47f36932d40a05a0715496dcab; affected 42437a6386ffeaaf200731e73d723ea491f3fe7d before 93992c3d9629b02dccf6849238559d5c24f2dece; affected 42437a6386ffeaaf200731e73d723ea491f3fe7d before 3ed51857a50f530ac7a1482e069dfbd1298558d4 |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 5.15.174 through 5.15.*; unaffected 6.1.120 through 6.1.*; unaffected 6.6.64 through 6.6.*; unaffected 6.12.4 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b
- https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6
- https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab
- https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece
- https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.