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fs/ntfs3: Fix general protection fault in run_is_mapped_full

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BugLink: https://bugs.launchpad.net/bugs/2099996

[ Upstream commit a33fb016e49e37aafab18dc3c8314d6399cb4727 ]

Fixed deleating of a non-resident attribute in ntfs_create_inode()
rollback.

Reported-by: syzbot+9af29acd8f27fbce94bc@syzkaller.appspotmail.com
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
CVE-2024-50243
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Konstantin Komarov
2025-02-25 22:59:22 +09:00
committed by Stefan Bader
parent ed92140748
commit 6c8e4dd1f1
1 changed files with 4 additions and 1 deletions
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fs/ntfs3/inode.c
+4 -1
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@@ -1707,7 +1707,10 @@ out6:
attr = ni_find_attr(ni, NULL, NULL, ATTR_EA, NULL, 0, NULL, NULL);
if (attr && attr->non_res) {
/* Delete ATTR_EA, if non-resident. */
attr_set_size(ni, ATTR_EA, NULL, 0, NULL, 0, NULL, false, NULL);
struct runs_tree run;
run_init(&run);
attr_set_size(ni, ATTR_EA, NULL, 0, &run, 0, NULL, false, NULL);
run_close(&run);
}
if (rp_inserted)