syzbot


BUG: unable to handle kernel paging request in invoke_syscall

Status: auto-obsoleted due to no activity on 2023/10/30 18:30
Subsystems: arm
[Documentation on labels]
Reported-by: syzbot+a5638594f1bc152f1200@syzkaller.appspotmail.com
First crash: 512d, last: 512d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [arm?] BUG: unable to handle kernel paging request in invoke_syscall 0 (1) 2023/07/04 14:01
Last patch testing requests (2)
Created Duration User Patch Repo Result
2023/10/30 18:04 24m retest repro upstream OK log
2023/08/21 16:39 3m retest repro upstream error

Sample crash report:
Unable to handle kernel paging request at virtual address bfff800082cebd10
Mem abort info:
  ESR = 0x0000000086000004
  EC = 0x21: IABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x04: level 0 translation fault
swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000042480000
[bfff800082cebd10] pgd=10000000bffff803, p4d=10000000bffff803, pud=10000000bfffe803, pmd=1000000043834003, pte=0068000048f30f07
Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 3234 Comm: udevd Not tainted 6.4.0-syzkaller-04247-g3a8a670eeeaa #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0xbfff800082cebd10
lr : 0xffff800082cebd10
sp : ffff800082cf3df0
x29: ffff800082cf3df0 x28: f9ff00000705af40 x27: 0000000000000000
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
x23: 0000000060000000 x22: 0000ffffa736068c x21: 00000000ffffffff
x20: f9ff00000705af40 x19: ffff800082cf3eb0 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: ffff800082cf3c88
x14: 0000000000000000 x13: 0000000000001000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000701 x9 : 0000000600000000
x8 : 000000001dcd6500 x7 : 0000000000000027 x6 : 0000ffffef8c1df8
x5 : 0000ffffef8c1df8 x4 : 0000000000000008 x3 : 0000000000000000
x2 : 0000000000000000 x1 : f9ff00000705af40 x0 : 0000000000000000
Call trace:
 0xbfff800082cebd10
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:52
 el0_svc_common.constprop.0+0x44/0xe4 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x38/0xa4 arch/arm64/kernel/syscall.c:191
 el0_svc+0x2c/0xb0 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0xc0/0xc4 arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:591
Code: 00000002 00000000 eed50f00 041d12ac (82cebd30) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	00000002 	udf	#2
   4:	00000000 	udf	#0
   8:	eed50f00 	.inst	0xeed50f00 ; undefined
   c:	041d12ac 	.inst	0x041d12ac ; undefined
* 10:	82cebd30 	.inst	0x82cebd30 ; undefined <-- trapping instruction

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/30 13:49 upstream 3a8a670eeeaa 01298212 .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte BUG: unable to handle kernel paging request in invoke_syscall
* Struck through repros no longer work on HEAD.