CVE-2024-56774
"Linux Btrfs Null-Pointer Dereference Vulnerability"
Description
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().
INFO
Published Date :
Jan. 8, 2025, 6:15 p.m.
Last Modified :
Jan. 9, 2025, 9 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-56774.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-56774 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-56774 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jan. 09, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.174 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.120 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.4 *cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4 No Types Assigned https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4 Patch Changed Reference Type https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab No Types Assigned https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab Patch Changed Reference Type https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece No Types Assigned https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece Patch Changed Reference Type https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b No Types Assigned https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b Patch Changed Reference Type https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6 No Types Assigned https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6 Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jan. 08, 2025
Action Type Old Value New Value Added Description 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(). Added Reference https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4 Added Reference https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab Added Reference https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece Added Reference https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b Added Reference https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-56774 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-56774
weaknesses.