From de24d640d5e30bbaf25ac314f95cbcbec9a97966 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Thu, 8 Mar 2018 20:35:23 -0600 Subject: [PATCH] xfs_db: don't crash in ablock if there's no inode Make sure we actually have an inode selected before trying to unwrap its attribute fork. Found via a crash in xfs/288 with project quotas enabled. Signed-off-by: Darrick J. Wong Reviewed-by: Eric Sandeen Signed-off-by: Eric Sandeen --- db/block.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/db/block.c b/db/block.c index 5ecd687ad..174e29ad4 100644 --- a/db/block.c +++ b/db/block.c @@ -84,6 +84,11 @@ ablock_f( } push_cur(); set_cur_inode(iocur_top->ino); + if (!iocur_top->data) { + pop_cur(); + dbprintf(_("no current inode\n")); + return 0; + } haveattr = XFS_DFORK_Q((xfs_dinode_t *)iocur_top->data); pop_cur(); if (!haveattr) { -- 2.47.2