syzbot


WARNING in bitmap_parse_user

Status: upstream: reported C repro on 2024/12/15 23:05
Subsystems: trace
[Documentation on labels]
Reported-by: syzbot+0aecfd34fb878546f3fd@syzkaller.appspotmail.com
Fix commit: 98feccbf32cf tracing: Prevent bad count for tracing_cpumask_write
Patched on: [ci-qemu-gce-upstream-auto ci-qemu-native-arm64-kvm ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-snapshot-upstream-root ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 64d, last: 40d
Discussions (4)
Title Replies (including bot) Last reply
[for-linus][PATCH 2/2] tracing: Prevent bad count for tracing_cpumask_write 1 (1) 2024/12/25 02:45
[syzbot] [trace?] WARNING in bitmap_parse_user 1 (5) 2024/12/16 12:49
[PATCH V2] tracing: Prevent bad count for tracing_cpumask_write 1 (1) 2024/12/16 07:32
[PATCH] tracing: Prevent bad count for tracing_cpumask_write 1 (1) 2024/12/16 02:27
Last patch testing requests (3)
Created Duration User Patch Repo Result
2024/12/16 12:29 19m eadavis@qq.com patch upstream OK log
2024/12/16 01:56 19m lizhi.xu@windriver.com patch upstream OK log
2024/12/16 00:55 18m lizhi.xu@windriver.com patch upstream OK log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5820 at mm/page_alloc.c:4727 __alloc_pages_noprof+0xeff/0x25b0 mm/page_alloc.c:4727
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor318 Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__alloc_pages_noprof+0xeff/0x25b0 mm/page_alloc.c:4727
Code: 24 2c 00 00 00 00 89 cd 0f 84 8b f9 ff ff 8b 34 24 48 89 da 8b 7c 24 08 e8 0e b3 fe ff e9 69 f9 ff ff c6 05 21 45 16 0e 01 90 <0f> 0b 90 31 db e9 9f f3 ff ff 89 14 24 e8 9f a2 0c 00 8b 14 24 e9
RSP: 0018:ffffc90003eef958 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000040cc0
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: 000000000000000b
R13: 0000000000040cc0 R14: 1ffff920007ddf3f R15: 00000000ffffffff
FS:  000055558bef6380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000580 CR3: 000000007d0f0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 ___kmalloc_large_node+0x84/0x1b0 mm/slub.c:4228
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:4255
 __do_kmalloc_node mm/slub.c:4271 [inline]
 __kmalloc_node_track_caller_noprof.cold+0x5/0x5f mm/slub.c:4302
 memdup_user_nul+0x2b/0x110 mm/util.c:305
 bitmap_parse_user+0x24/0x90 lib/bitmap-str.c:31
 cpumask_parse_user include/linux/cpumask.h:876 [inline]
 tracing_cpumask_write+0xfc/0x1a0 kernel/trace/trace.c:5231
 vfs_write+0x24c/0x1150 fs/read_write.c:677
 ksys_write+0x12b/0x250 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc57b8672a9
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffd0ca10e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fffd0ca12c8 RCX: 00007fc57b8672a9
RDX: 000000000040fdef RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fc57b8da610 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffd0ca12b8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (83):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/12 07:53 upstream f92f4749861b 6f1b0fa8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/12 01:59 upstream f92f4749861b 6f1b0fa8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/12 00:59 upstream f92f4749861b 6f1b0fa8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/11 23:56 upstream f92f4749861b 6f1b0fa8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/05 09:46 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/05 00:45 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/04 15:35 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/04 14:32 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/03 13:55 upstream 0bc21e701a6f 96d578a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/03 10:35 upstream 0bc21e701a6f d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/03 08:43 upstream 0bc21e701a6f d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/03 06:50 upstream 0bc21e701a6f d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/03 02:21 upstream 0bc21e701a6f d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/02 22:59 upstream 0bc21e701a6f d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/02 14:07 upstream 56e6a3499e14 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/02 09:10 upstream 56e6a3499e14 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/02 03:35 upstream 56e6a3499e14 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2025/01/01 16:08 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/31 19:34 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/30 11:08 upstream fc033cf25e61 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/30 01:44 upstream 4099a71718b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/29 23:50 upstream 4099a71718b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/29 22:17 upstream 4099a71718b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/28 15:43 upstream fd0584d220fe d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/27 17:37 upstream d6ef8b40d075 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/27 07:23 upstream d6ef8b40d075 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/27 00:23 upstream d6ef8b40d075 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/26 20:22 upstream 9b2ffa6148b1 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/26 07:48 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/25 21:24 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/25 17:44 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/25 14:22 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/25 12:39 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/25 08:27 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/25 05:11 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/25 00:06 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/24 22:38 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/23 18:21 upstream 4bbf9020becb 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/23 05:42 upstream bcde95ce32b6 b4fbdbd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/23 03:59 upstream bcde95ce32b6 b4fbdbd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/21 20:38 upstream 499551201b5f d7f584ee .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/21 04:28 upstream e9b8ffafd20a d7f584ee .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/21 00:47 upstream e9b8ffafd20a d7f584ee .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/20 14:10 upstream 8faabc041a00 49cfeac8 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/20 05:28 upstream 8faabc041a00 c87fa8a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/20 04:56 upstream 8faabc041a00 c87fa8a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/20 04:06 upstream 8faabc041a00 c87fa8a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/19 18:57 upstream eabcdba3ad40 1d58202c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/14 02:12 upstream 243f750a2df0 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/13 14:31 upstream f932fb9b4074 b1b5e51a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/13 08:48 upstream 150b567e0d57 3547e30f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/12 18:17 upstream 231825b2e1ff 035bb8e0 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/12 17:49 upstream 231825b2e1ff 035bb8e0 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/12 14:00 upstream 231825b2e1ff 035bb8e0 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/12 07:33 upstream f92f4749861b 6f1b0fa8 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
2024/12/11 22:54 upstream f92f4749861b 6f1b0fa8 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in bitmap_parse_user
* Struck through repros no longer work on HEAD.