CVE - CVE-2023-52444

CVE-ID
CVE-2023-52444	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid dirent corruption As Al reported in link[1]: f2fs_rename() ... if (old_dir != new_dir && !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); else f2fs_put_page(old_dir_page, 0); You want correct inumber in the ".." link. And cross-directory rename does move the source to new parent, even if you'd been asked to leave a whiteout in the old place. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ With below testcase, it may cause dirent corruption, due to it missed to call f2fs_set_link() to update ".." link to new directory. - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --> Bad inode number[0x4] for '..', parent parent ino is [0x3] [FSCK] other corrupted bugs [Fail]
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46 URL:https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46 MISC:https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862 URL:https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862 MISC:https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28 URL:https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28 MISC:https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024 URL:https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024 MISC:https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310 URL:https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310 MISC:https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728 URL:https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728 MISC:https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7 URL:https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7 MISC:https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77 URL:https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77
Assigning CNA
kernel.org
Date Record Created
20240220	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240220)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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