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vfs: catch invalid modes in may_open()

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Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://lore.kernel.org/r/20250209185523.745956-3-mjguzik@gmail.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Mateusz Guzik 2025-02-09 19:55:21 +01:00 • committed by Christian Brauner
parent 8b17e54096
commit af153bb63a
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1 changed files with 2 additions and 0 deletions
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2
fs/namei.c
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@ -3415,6 +3415,8 @@ static int may_open(struct mnt_idmap *idmap, const struct path *path,
if ((acc_mode & MAY_EXEC) && path_noexec(path)) if ((acc_mode & MAY_EXEC) && path_noexec(path))
return -EACCES; return -EACCES;
break; break;
default:
VFS_BUG_ON_INODE(1, inode);
} }
error = inode_permission(idmap, inode, MAY_OPEN | acc_mode); error = inode_permission(idmap, inode, MAY_OPEN | acc_mode);