cbcvebase.
CVE-2024-56774
published 2025-01-08

CVE-2024-56774: 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…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
10.9th percentile
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

18 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
debianlinux-6.1< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
linuxlinux
linuxlinux>= 42437a6386ffeaaf200731e73d723ea491f3fe7d < c71d114ef68c95da5a82ec85a721ab31f5bd905bc71d114ef68c95da5a82ec85a721ab31f5bd905b
linuxlinux>= 42437a6386ffeaaf200731e73d723ea491f3fe7d < db66fb87c21e8ae724886e6a464dcbac562a64c6db66fb87c21e8ae724886e6a464dcbac562a64c6
linuxlinux>= 42437a6386ffeaaf200731e73d723ea491f3fe7d < 757171d1369b3b47f36932d40a05a0715496dcab757171d1369b3b47f36932d40a05a0715496dcab
linuxlinux>= 42437a6386ffeaaf200731e73d723ea491f3fe7d < 93992c3d9629b02dccf6849238559d5c24f2dece93992c3d9629b02dccf6849238559d5c24f2dece
linuxlinux>= 42437a6386ffeaaf200731e73d723ea491f3fe7d < 3ed51857a50f530ac7a1482e069dfbd1298558d43ed51857a50f530ac7a1482e069dfbd1298558d4
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.123-16.1.123-1
linuxlinux_kernel>= 0 < 6.12.5-16.12.5-1
linuxlinux_kernel>= 0 < 6.12.5-16.12.5-1
linuxlinux_kernel>= 0 < 5.15.0-135.1465.15.0-135.146
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 5.11 < 5.15.1745.15.174
linuxlinux_kernel>= 5.16 < 6.1.1206.1.120
linuxlinux_kernel>= 6.2 < 6.6.646.6.64
linuxlinux_kernel>= 6.7 < 6.12.46.12.4

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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