From: Konstantin Komarov almaz.alexandrovich@paragon-software.com

stable inclusion from stable-v6.6.60 commit e91fbb21f248bdd8140f343dac32b77b9bc10fec category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IB37BA CVE: CVE-2024-50246

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...

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[ Upstream commit c4a8ba334262e9a5c158d618a4820e1b9c12495c ]

Reported-by: syzbot+c6d94bedd910a8216d25@syzkaller.appspotmail.com Signed-off-by: Konstantin Komarov almaz.alexandrovich@paragon-software.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zizhi Wo wozizhi@huawei.com --- fs/ntfs3/record.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/fs/ntfs3/record.c b/fs/ntfs3/record.c index 463b0abc1051..cc1aa626bb9e 100644 --- a/fs/ntfs3/record.c +++ b/fs/ntfs3/record.c @@ -319,6 +319,9 @@ struct ATTRIB *mi_enum_attr(struct mft_inode *mi, struct ATTRIB *attr)

if (attr->nres.c_unit) return NULL; + + if (alloc_size > mi->sbi->volume.size) + return NULL; }

return attr;