syzbot


BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath

Status: upstream: reported C repro on 2022/09/02 21:02
Reported-by: syzbot+66ad6d47392c3113957e@syzkaller.appspotmail.com
First crash: 96d, last: 5d17h

Sample crash report:
Unable to handle kernel paging request at virtual address 00000000000012e8
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000011163c000
[00000000000012e8] pgd=080000011204a003, p4d=080000011204a003, pud=080000011068f003, pmd=0000000000000000
Internal error: Oops: 96000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 926 Comm: syz-executor308 Not tainted 6.0.0-rc3-syzkaller-16800-g85413d1e802e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mem_cgroup_track_foreign_dirty_slowpath+0x3c/0x1e4 mm/memcontrol.c:4595
lr : mem_cgroup_track_foreign_dirty_slowpath+0x38/0x1e4 mm/memcontrol.c:4586
sp : ffff800016c9ba80
x29: ffff800016c9ba80 x28: ffff0000d12cb500 x27: 0c00000000000001
x26: 0000000000000001 x25: ffff0000c017b000 x24: 0000000000000100
x23: ffff80000d379000 x22: 00000001000233ce x21: fffffc0003463000
x20: ffff0000c3849060 x19: 0000000000000000 x18: 000000000000013a
x17: ffff80000c04d6bc x16: ffff80000dbb8658 x15: ffff0000d12cb500
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000d12cb500
x11: ff808000095ecd98 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c3849000 x7 : ffff80000856f3a4 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000010 x1 : ffff80000cb90d29 x0 : 0000000000000001
Call trace:
 mem_cgroup_track_foreign_dirty_slowpath+0x3c/0x1e4
 mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1663 [inline]
 folio_account_dirtied+0x430/0x650 mm/page-writeback.c:2575
 __folio_mark_dirty+0xbc/0x180 mm/page-writeback.c:2615
 block_dirty_folio+0x10c/0x1ec fs/buffer.c:640
 folio_mark_dirty+0xbc/0x208 mm/page-writeback.c:2748
 filemap_page_mkwrite+0x26c/0x5dc mm/filemap.c:3418
 do_page_mkwrite+0x74/0x288 mm/memory.c:2971
 wp_page_shared+0x8c/0x4e4 mm/memory.c:3316
 do_wp_page+0x86c/0x110c mm/memory.c:3466
 handle_pte_fault mm/memory.c:4929 [inline]
 __handle_mm_fault mm/memory.c:5053 [inline]
 handle_mm_fault+0x878/0xa40 mm/memory.c:5151
 __do_page_fault arch/arm64/mm/fault.c:502 [inline]
 do_page_fault+0x428/0x79c arch/arm64/mm/fault.c:602
 do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:818
 el0_da+0x70/0x16c arch/arm64/kernel/entry-common.c:502
 el0t_64_sync_handler+0xcc/0xf0 arch/arm64/kernel/entry-common.c:645
 el0t_64_sync+0x18c/0x190
Code: aa1503e0 aa1403e1 9400006c f9400288 (f9497669) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1503e0 	mov	x0, x21
   4:	aa1403e1 	mov	x1, x20
   8:	9400006c 	bl	0x1b8
   c:	f9400288 	ldr	x8, [x20]
* 10:	f9497669 	ldr	x9, [x19, #4840] <-- trapping instruction

Crashes (19):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-gce-arm64 2022/09/02 21:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 85413d1e802e 25194605 .config log report syz C BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/11/06 01:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 6d752409 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/11/04 20:09 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 6d752409 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/28 22:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 ea12ae9b .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/22 12:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 c0b80a55 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/16 14:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 67cb024c .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/15 07:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 67cb024c .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/14 16:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 4954e4b2 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/12 02:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 1353c374 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/11 15:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 1353c374 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/11 12:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 2b253ced .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/10/10 22:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 aea5da89 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/09/02 15:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 85413d1e802e 25194605 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/08/26 12:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a41a877bc12d 15195ea3 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/08/22 13:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 680fb5b009e8 26a13b38 .config log report info BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/11/21 07:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9500fc6e9e60 5bb70014 .config log report info BUG: unable to handle kernel NULL pointer dereference in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/11/13 20:43 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1621b6eaebf7 3ead01ad .config log report info BUG: unable to handle kernel NULL pointer dereference in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/11/13 18:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1621b6eaebf7 3ead01ad .config log report info BUG: unable to handle kernel NULL pointer dereference in mem_cgroup_track_foreign_dirty_slowpath
ci-upstream-gce-arm64 2022/11/11 17:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1621b6eaebf7 3ead01ad .config log report info BUG: unable to handle kernel NULL pointer dereference in mem_cgroup_track_foreign_dirty_slowpath
* Struck through repros no longer work on HEAD.