syzbot


WARNING in split_huge_page_to_list (2)

Status: upstream: reported C repro on 2022/08/23 22:08
Subsystems: io-uring (incorrect?)
Reported-by: syzbot+07a218429c8d19b1fb25@syzkaller.appspotmail.com
First crash: 217d, last: 6h20m

Cause bisection: failed (error log, bisect log)
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
WARNING: CPU: NUM PID: NUM at mm/huge_memory.c:LINE split_huge_page_to_l C 1 217d 213d 0/24 closed as dup on 2022/09/02 12:32
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in split_huge_page_to_list C 4 11d 12d 0/3 upstream: reported C repro on 2023/03/12 08:31
linux-6.1 WARNING in split_huge_page_to_list C 1 12d 12d 0/3 upstream: reported C repro on 2023/03/12 14:08
upstream WARNING in split_huge_page_to_list 13 553d 581d 0/24 auto-closed as invalid on 2022/01/15 05:12

Sample crash report:
 io_mem_free.part.0+0xb0/0xb9 io_uring/io_uring.c:2463
 io_mem_free io_uring/io_uring.c:2458 [inline]
 io_ring_ctx_free io_uring/io_uring.c:2628 [inline]
 io_ring_exit_work+0xa70/0xc2e io_uring/io_uring.c:2789
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3771 at mm/huge_memory.c:2465 __split_huge_page_tail mm/huge_memory.c:2465 [inline]
WARNING: CPU: 0 PID: 3771 at mm/huge_memory.c:2465 __split_huge_page mm/huge_memory.c:2527 [inline]
WARNING: CPU: 0 PID: 3771 at mm/huge_memory.c:2465 split_huge_page_to_list+0x3586/0x4530 mm/huge_memory.c:2756
Modules linked in:
CPU: 0 PID: 3771 Comm: syz-executor338 Not tainted 6.1.0-rc1-syzkaller-00249-g4da34b7d175d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:__split_huge_page_tail mm/huge_memory.c:2465 [inline]
RIP: 0010:__split_huge_page mm/huge_memory.c:2527 [inline]
RIP: 0010:split_huge_page_to_list+0x3586/0x4530 mm/huge_memory.c:2756
Code: 40 ec af ff 45 84 f6 0f 85 3c dc ff ff e8 a2 ef af ff 48 8b 7c 24 08 48 c7 c6 00 90 fa 89 e8 e1 5a e6 ff c6 05 59 c8 ff 0b 01 <0f> 0b e9 18 dc ff ff e8 7e ef af ff 4c 8b 7c 24 08 31 ff 4c 89 fd
RSP: 0018:ffffc90003c0f2d0 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffea0001740000 RCX: 0000000000000000
RDX: ffff8880249a57c0 RSI: ffffffff81cc9b5f RDI: ffffffff8de21350
RBP: ffffea0001746c00 R08: 0000000000000000 R09: ffffffff8de21357
R10: 0000000000000000 R11: 6f72665f74657220 R12: ffffea0001746c08
R13: ffffea0001746c28 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000555556961300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001304 CR3: 000000001d98b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 split_huge_page include/linux/huge_mm.h:188 [inline]
 deferred_split_scan+0x6d5/0xdd0 mm/huge_memory.c:2882
 do_shrink_slab+0x464/0xce0 mm/vmscan.c:842
 shrink_slab_memcg mm/vmscan.c:911 [inline]
 shrink_slab+0x388/0x660 mm/vmscan.c:990
 shrink_node_memcgs mm/vmscan.c:6076 [inline]
 shrink_node+0x93d/0x1f30 mm/vmscan.c:6105
 shrink_zones mm/vmscan.c:6343 [inline]
 do_try_to_free_pages+0x3b4/0x17a0 mm/vmscan.c:6405
 try_to_free_mem_cgroup_pages+0x3a0/0xa70 mm/vmscan.c:6720
 try_charge_memcg+0x464/0x12f0 mm/memcontrol.c:2681
 try_charge mm/memcontrol.c:2823 [inline]
 mem_cgroup_charge_skmem+0x7c/0x1c0 mm/memcontrol.c:7209
 sock_reserve_memory net/core/sock.c:1018 [inline]
 sk_setsockopt+0x806/0x37c0 net/core/sock.c:1518
 __sys_setsockopt+0x559/0x690 net/socket.c:2248
 __do_sys_setsockopt net/socket.c:2263 [inline]
 __se_sys_setsockopt net/socket.c:2260 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2260
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fed494a8ee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007ffdaa17d978 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fed494a8ee9
RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000010 R09: 00007ffdaa17d9a0
R10: 0000000020000040 R11: 0000000000000246 R12: 00007ffdaa17d99c
R13: 00007ffdaa17d9b0 R14: 00007ffdaa17d9f0 R15: 00000000000000a5
 </TASK>

Crashes (1865):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-upstream-kasan-gce 2022/10/22 15:54 upstream 4da34b7d175d c0b80a55 .config strace log report syz C [disk image] [vmlinux] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/12 08:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report syz C [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2022/08/20 14:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 680fb5b009e8 26a13b38 .config console log report syz C WARNING in split_huge_page_to_list
ci-qemu-upstream 2022/11/03 18:36 upstream 200204f56f3b 7a2ebf95 .config console log report info WARNING in split_huge_page_to_list
ci-upstream-kasan-gce-selinux-root 2022/11/03 13:03 upstream b229b6ca5abb 7a2ebf95 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-kasan-gce-root 2022/11/03 11:42 upstream b229b6ca5abb 7a2ebf95 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-kasan-gce 2022/11/02 21:36 upstream b229b6ca5abb 08977f5d .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-qemu-upstream-386 2022/11/03 06:02 upstream 200204f56f3b b7c72847 .config console log report info WARNING in split_huge_page_to_list
ci-upstream-kasan-gce-386 2022/11/03 00:19 upstream b229b6ca5abb 08977f5d .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-linux-next-kasan-gce-root 2022/11/02 11:28 linux-next 4d48f589d294 edac4fd1 .config console log report info [disk image] [vmlinux] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/24 20:04 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e8d018dd0257 9700afae .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/24 15:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 9700afae .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/24 06:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e f94b4a29 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/23 21:09 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e f94b4a29 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/23 17:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e f94b4a29 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/23 10:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e f94b4a29 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/23 00:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e f94b4a29 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/22 13:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e d846e076 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/22 11:35 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e d846e076 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/22 02:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 8b4eb097 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/22 01:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 8b4eb097 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/21 22:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 8b4eb097 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/21 12:43 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 03fb9538 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/21 10:28 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 03fb9538 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/20 19:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/20 02:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/19 15:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/19 12:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/18 18:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/18 07:43 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/17 23:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/17 22:08 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/17 19:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/17 19:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/17 11:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/17 04:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/16 23:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/16 10:04 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/15 22:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/15 15:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/15 13:28 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/15 05:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/15 03:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/15 00:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/14 19:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/14 06:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/13 21:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/13 17:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/13 15:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/13 12:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/13 08:25 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/13 02:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/12 18:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/12 16:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/12 12:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2023/03/12 06:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in split_huge_page_to_list
ci-upstream-gce-arm64 2022/08/19 22:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 680fb5b009e8 26a13b38 .config console log report info WARNING in split_huge_page_to_list
* Struck through repros no longer work on HEAD.