syzbot


kernel BUG at arch/x86/mm/physaddr.c:LINE! (3)

Status: auto-closed as invalid on 2019/10/25 08:46
Reported-by: syzbot+50a27df2d1cd8ae38609@syzkaller.appspotmail.com
First crash: 1107d, last: 1099d
similar bugs (9):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) C done 522 1108d 1318d 13/22 fixed on 2019/06/14 18:22
upstream kernel BUG at arch/x86/mm/physaddr.c:LINE! (6) 90 200d 697d 0/22 auto-closed as invalid on 2022/04/07 07:37
linux-4.19 kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) C done 82 766d 906d 1/1 fixed on 2020/06/20 23:56
linux-4.19 kernel BUG at arch/x86/mm/physaddr.c:LINE! syz done 1 1093d 1093d 1/1 fixed on 2019/12/16 09:09
linux-4.14 kernel BUG at arch/x86/mm/physaddr.c:LINE! C inconclusive 23 457d 913d 0/1 upstream: reported C repro on 2019/12/26 02:01
upstream kernel BUG at arch/x86/mm/physaddr.c:LINE! (5) C done 241 713d 786d 17/22 fixed on 2020/07/17 17:58
upstream kernel BUG at arch/x86/mm/physaddr.c:LINE! C 10 1323d 1355d 12/22 fixed on 2018/11/12 21:25
linux-4.19 kernel BUG at arch/x86/mm/physaddr.c:LINE! (3) 75 38d 712d 0/1 upstream: reported on 2020/07/14 16:42
upstream kernel BUG at arch/x86/mm/physaddr.c:LINE! (4) C 18 821d 855d 17/22 fixed on 2020/04/15 17:19

Sample crash report:
------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 29308 Comm: kworker/0:0 Not tainted 5.2.0-rc5+ #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events cache_reap
RIP: 0010:__phys_addr+0xb3/0x120 arch/x86/mm/physaddr.c:27
Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 f6 00 3e 00 48 85 db 75 0f e8 4c ff 3d 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 3d ff 3d 00 <0f> 0b e8 36 ff 3d 00 48 c7 c0 10 50 a7 88 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff88804752fbd8 EFLAGS: 00010093
RAX: ffff888059350600 RBX: 0000000000000000 RCX: ffffffff8132c192
RDX: 0000000000000000 RSI: ffffffff8132c1f3 RDI: 0000000000000006
RBP: ffff88804752fbf0 R08: ffff888059350600 R09: ffffed1008ea5f80
R10: ffffed1008ea5f7f R11: 0000000000000003 R12: 0000778000000000
R13: 0000000080000000 R14: ffff88804dd46c00 R15: ffffea00025de388
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f423000 CR3: 000000009320c000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 virt_to_head_page include/linux/mm.h:729 [inline]
 free_block+0xa8/0x250 mm/slab.c:3349
 drain_array_locked+0x36/0x90 mm/slab.c:2142
 drain_array+0x8c/0xb0 mm/slab.c:3960
 cache_reap+0xf4/0x280 mm/slab.c:4001
 process_one_work+0x989/0x1790 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x354/0x420 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:

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Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2019/06/23 04:49 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-kasan-gce-selinux-root 2019/06/21 09:26 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-net-kasan-gce 2019/06/16 11:49 net-next 930cfe0f129d 442206d7 .config log report
ci-upstream-net-kasan-gce 2019/06/15 07:06 net-next 733f0766c3de 442206d7 .config log report