Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2024-50088

Disclosure Date: October 29, 2024
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix uninitialized pointer free in add_inode_ref()

The add_inode_ref() function does not initialize the “name” struct when
it is declared. If any of the following calls to “read_one_inode()
returns NULL,

dir = read_one_inode(root, parent_objectid);
if (!dir) {
	ret = -ENOENT;
	goto out;
}

inode = read_one_inode(root, inode_objectid);
if (!inode) {
	ret = -EIO;
	goto out;
}

then “name.name” would be freed on “out” before being initialized.

out:

...
kfree(name.name);

This issue was reported by Coverity with CID 1526744.

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CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • linux

Products

  • linux kernel,
  • linux kernel 6.12
Technical Analysis