cve-2023-52444
Vulnerability from cvelistv5
Published
2024-02-22 16:21
Modified
2024-11-04 14:46
Severity ?
Summary
f2fs: fix to avoid dirent corruption
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

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And cross-directory\\nrename does move the source to new parent, even if you\u0027d been asked\\nto leave a whiteout in the old place.\\n\\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\\n\\nWith below testcase, it may cause dirent corruption, due to it missed\\nto call f2fs_set_link() to update \\\"..\\\" link to new directory.\\n- mkdir -p dir/foo\\n- renameat2 -w dir/foo bar\\n\\n[ASSERT] (__chk_dots_dentries:1421)  --\u003e Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3]\\n[FSCK] other corrupted bugs                           [Fail]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: correcci\u00f3n para evitar corrupci\u00f3n directa Como inform\u00f3 Al en link[1]: f2fs_rename() ... if (old_dir != new_dir \u0026amp;\u0026amp; !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); dem\u00e1s f2fs_put_page(old_dir_page, 0); Quiere el n\u00famero correcto en el enlace \\\"..\\\" Y el cambio de nombre entre directorios mueve la fuente al nuevo padre, incluso si le hubieran pedido que dejara un espacio en blanco en el lugar anterior. 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