syzbot


WARNING in ntfs_load_attr_list

Status: fixed on 2023/10/12 12:48
Subsystems: ntfs3
[Documentation on labels]
Reported-by: syzbot+89dbb3a789a5b9711793@syzkaller.appspotmail.com
Fix commit: ea303f72d70c fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list()
First crash: 509d, last: 388d
Discussions (6)
Title Replies (including bot) Last reply
[PATCH AUTOSEL 5.15 20/24] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() 1 (1) 2023/07/24 01:33
[PATCH AUTOSEL 6.1 27/34] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() 1 (1) 2023/07/24 01:32
[PATCH AUTOSEL 6.4 30/40] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() 1 (1) 2023/07/24 01:31
Re: [PATCH] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() 4 (4) 2023/01/17 11:11
[PATCH] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() 1 (1) 2023/01/02 14:53
[syzbot] [ntfs3?] WARNING in ntfs_load_attr_list 0 (1) 2023/01/02 10:11

Sample crash report:
loop0: detected capacity change from 0 to 4096
ntfs3: loop0: Different NTFS' sector size (1024) and media sector size (512)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3074 at mm/page_alloc.c:5534 __alloc_pages+0x150/0x1fc mm/page_alloc.c:5534
Modules linked in:
CPU: 0 PID: 3074 Comm: syz-executor509 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __alloc_pages+0x150/0x1fc mm/page_alloc.c:5534
lr : __alloc_pages_node include/linux/gfp.h:237 [inline]
lr : alloc_pages_node include/linux/gfp.h:260 [inline]
lr : __kmalloc_large_node+0xb4/0x1dc mm/slab_common.c:1096
sp : ffff80000ff138b0
x29: ffff80000ff138f0 x28: 0000000000000001 x27: ffff0000c62ca900
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
x23: ffff0000ca9316d0 x22: 0000000000000004 x21: 0000000000040c40
x20: 0000000000000000 x19: 0000000000000022 x18: 00000000000000c0
x17: ffff80000dda8198 x16: ffff80000dbe6158 x15: ffff0000c9ae1a40
x14: 0000000000000000 x13: 00000000ffffffff x12: 000000020000000f
x11: 00000000f0000006 x10: 0000000000000040 x9 : 0000000000000001
x8 : ffff80000d95e000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : ffff0000c9bc788c x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000022 x0 : 0000000000040c40
Call trace:
 __alloc_pages+0x150/0x1fc mm/page_alloc.c:5534
 __alloc_pages_node include/linux/gfp.h:237 [inline]
 alloc_pages_node include/linux/gfp.h:260 [inline]
 __kmalloc_large_node+0xb4/0x1dc mm/slab_common.c:1096
 __do_kmalloc_node mm/slab_common.c:943 [inline]
 __kmalloc+0x104/0x140 mm/slab_common.c:968
 kmalloc include/linux/slab.h:558 [inline]
 ntfs_load_attr_list+0x124/0x1d0 fs/ntfs3/attrlist.c:78
 ntfs_read_mft fs/ntfs3/inode.c:162 [inline]
 ntfs_iget5+0x59c/0x138c fs/ntfs3/inode.c:501
 ntfs_loadlog_and_replay+0x98/0x1ec fs/ntfs3/fsntfs.c:272
 ntfs_fill_super+0xc10/0x14a4 fs/ntfs3/super.c:1018
 get_tree_bdev+0x1e8/0x2a0 fs/super.c:1324
 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1358
 vfs_get_tree+0x40/0x140 fs/super.c:1531
 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
 path_mount+0x358/0x890 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
irq event stamp: 23612
hardirqs last  enabled at (23611): [<ffff80000852de54>] ___slab_alloc+0x794/0x91c mm/slub.c:3132
hardirqs last disabled at (23612): [<ffff80000c084084>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (21864): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (21721): [<ffff800008017c88>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
ntfs3: loop0: Failed to load $MFT.

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/12/29 10:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 44712fbc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in ntfs_load_attr_list
2023/02/28 22:52 upstream ae3419fbac84 95aee97a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in ntfs_load_attr_list
2023/04/21 21:37 upstream 2af3e53a4dc0 2b32bd34 .config console log report info ci-qemu-upstream-386 WARNING in ntfs_load_attr_list
2023/04/30 02:24 linux-next 92e815cf07ed 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_load_attr_list
* Struck through repros no longer work on HEAD.