Messages in this thread Patch in this message | | | Date | Sun, 12 Nov 2023 02:16:46 -0800 | Subject | Re: [syzbot] Re: [syzbot] [btrfs?] memory leak in btrfs_ref_tree_mod | From | syzbot <> |
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For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org.
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Subject: Re: [syzbot] [btrfs?] memory leak in btrfs_ref_tree_mod Author: bragathemanick0908@gmail.com
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 25aa0bebba72
--- a/fs/btrfs/ref-verify.c +++ b/fs/btrfs/ref-verify.c @@ -791,6 +791,7 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info, dump_ref_action(fs_info, ra); kfree(ref); kfree(ra); + kfree(re); goto out_unlock; } else if (be->num_refs == 0) { btrfs_err(fs_info, @@ -800,6 +801,7 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info, dump_ref_action(fs_info, ra); kfree(ref); kfree(ra); + kfree(re); goto out_unlock; } @@ -822,6 +824,7 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info, dump_ref_action(fs_info, ra); kfree(ref); kfree(ra); + kfree(re); goto out_unlock; } exist->num_refs--; @@ -838,6 +841,7 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info, dump_ref_action(fs_info, ra); kfree(ref); kfree(ra); + kfree(re); goto out_unlock; } kfree(ref); @@ -849,6 +853,7 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info, dump_ref_action(fs_info, ra); kfree(ref); kfree(ra); + kfree(re); goto out_unlock; } } @@ -881,6 +886,8 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info, } list_add_tail(&ra->list, &be->actions); ret = 0; + kfree(ra); + kfree(re); out_unlock: spin_unlock(&fs_info->ref_verify_lock); out:
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