CVE-2024-50088: falha de alta gravidade em Linux
btrfs: fix uninitialized pointer free in add_inode_ref()
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.8epss 0.2%
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Referências
https://git.kernel.org/stable/c/12cf028381aa19bc38465341512c280256e8d82dhttps://git.kernel.org/stable/c/66691c6e2f18d2aa4b22ffb624b9bdc97e9979e4https://git.kernel.org/stable/c/a941f3d5b1469c60a7e70e775584f110b47e0d16https://git.kernel.org/stable/c/e11ce03b58743bf1e096c48fcaa7e6f08eb75dfahttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html