syzbot


WARNING in gfs2_ri_update

Status: upstream: reported C repro on 2022/09/16 06:06
Reported-by: syzbot+f8bc4176e51e87e0928f@syzkaller.appspotmail.com
First crash: 82d, last: 29d

Cause bisection: failed (bisect log)

Sample crash report:
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3611 at mm/page_alloc.c:5530 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5530
Modules linked in:
CPU: 1 PID: 3611 Comm: syz-executor282 Not tainted 6.1.0-rc1-syzkaller-00158-g440b7895c990 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5530
Code: 5c 24 04 0f 85 f3 00 00 00 44 89 e1 81 e1 7f ff ff ff a9 00 00 04 00 41 0f 44 cc 41 89 cc e9 e3 00 00 00 c6 05 a1 ab 29 0c 01 <0f> 0b 83 fb 0a 0f 86 c8 fd ff ff 31 db 48 c7 44 24 20 0e 36 e0 45
RSP: 0018:ffffc90003c5f4a0 EFLAGS: 00010246
RAX: ffffc90003c5f500 RBX: 0000000000000012 RCX: 0000000000000000
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90003c5f528
RBP: ffffc90003c5f5b8 R08: dffffc0000000000 R09: ffffc90003c5f500
R10: fffff5200078bea5 R11: 1ffff9200078bea0 R12: 0000000000040d40
R13: 1ffff9200078be9c R14: dffffc0000000000 R15: 1ffff9200078be98
FS:  0000555555781300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005d84c8 CR3: 0000000079874000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __alloc_pages_node include/linux/gfp.h:223 [inline]
 alloc_pages_node include/linux/gfp.h:246 [inline]
 __kmalloc_large_node+0x8a/0x1a0 mm/slab_common.c:1098
 __do_kmalloc_node mm/slab_common.c:943 [inline]
 __kmalloc+0xfe/0x1a0 mm/slab_common.c:968
 kmalloc_array include/linux/slab.h:628 [inline]
 kcalloc include/linux/slab.h:659 [inline]
 compute_bitstructs fs/gfs2/rgrp.c:766 [inline]
 read_rindex_entry fs/gfs2/rgrp.c:931 [inline]
 gfs2_ri_update+0x537/0x17f0 fs/gfs2/rgrp.c:1001
 gfs2_rindex_update+0x313/0x3f0 fs/gfs2/rgrp.c:1051
 init_inodes+0x242/0x340 fs/gfs2/ops_fstype.c:917
 gfs2_fill_super+0x1bb2/0x2700 fs/gfs2/ops_fstype.c:1247
 get_tree_bdev+0x400/0x620 fs/super.c:1323
 gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb4bd4a797a
Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc73f0a0b8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb4bd4a797a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc73f0a0d0
RBP: 00007ffc73f0a0d0 R08: 00007ffc73f0a110 R09: 00005555557812c0
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004
R13: 00007ffc73f0a110 R14: 000000000000091b R15: 000000002000dc88
 </TASK>

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-fs 2022/10/22 11:11 upstream 440b7895c990 c0b80a55 .config log report syz C WARNING in gfs2_ri_update
ci2-upstream-fs 2022/11/04 02:05 upstream f2f32f8af2b0 6d752409 .config log report info WARNING in gfs2_ri_update
ci2-upstream-fs 2022/11/02 12:28 upstream b229b6ca5abb 08977f5d .config log report info WARNING in gfs2_ri_update
ci-upstream-gce-arm64 2022/09/12 06:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 356d8217 .config log report info WARNING in gfs2_ri_update
* Struck through repros no longer work on HEAD.