6.9-stable review patch. If anyone has any objections, please let me know.
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From: Konstantin Komarov almaz.alexandrovich@paragon-software.com
[ Upstream commit 24f6f5020b0b2c89c2cba5ec224547be95f753ee ]
Mark a volume as corrupted if the name length exceeds the space occupied by ea.
Signed-off-by: Konstantin Komarov almaz.alexandrovich@paragon-software.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ntfs3/xattr.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c index 53e7d1fa036aa..73785dece7a7f 100644 --- a/fs/ntfs3/xattr.c +++ b/fs/ntfs3/xattr.c @@ -219,8 +219,11 @@ static ssize_t ntfs_list_ea(struct ntfs_inode *ni, char *buffer, if (!ea->name_len) break;
- if (ea->name_len > ea_size) + if (ea->name_len > ea_size) { + ntfs_set_state(ni->mi.sbi, NTFS_DIRTY_ERROR); + err = -EINVAL; /* corrupted fs */ break; + }
if (buffer) { /* Check if we can use field ea->name */