ci starts bisection 2022-11-21 20:06:56.152827944 +0000 UTC m=+14375.368431621
bisecting fixing commit since a335366bad1364a07f49df9da1fdfa6d411a5f39
building syzkaller on dd9a85ff356d74a765888403f1b70faece9e642b
ensuring issue is reproducible on original commit a335366bad1364a07f49df9da1fdfa6d411a5f39
testing commit a335366bad1364a07f49df9da1fdfa6d411a5f39 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: c7e900c6ba5faf8fde169659e1b2e78c4810bedacff9ef9c00667b2acd4bfed5
run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: EOF
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in corrupted
run #10: crashed: INFO: rcu detected stall in corrupted
run #11: crashed: KASAN: use-after-free Read in powermate_config_complete
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD eb7081409f94a9a8608593d0fb63a1aa3d6f95d8
testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 6951096d60d4dba8d9798ac6923082083babef2fa3dff2f3075c2d6b947ff14a
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: KASAN: use-after-free Read in powermate_config_complete
run #5: crashed: KASAN: use-after-free Read in powermate_config_complete
run #6: crashed: KASAN: use-after-free Read in powermate_config_complete
run #7: OK
run #8: OK
run #9: OK
revisions tested: 2, total time: 32m35.320736816s (build: 13m53.853219483s, test: 17m49.987589688s)
the crash still happens on HEAD
commit msg: Linux 6.1-rc6
crash: KASAN: use-after-free Read in powermate_config_complete
powermate: config urb returned -71
powermate 2-1:0.0: powermate_irq - usb_submit_urb failed with result: -19
powermate: config urb returned -108
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x3ee7/0x56d0 kernel/locking/lockdep.c:4925
Read of size 8 at addr ffff888075431658 by task swapper/1/0
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106
print_address_description mm/kasan/report.c:284 [inline]
print_report+0x15e/0x45d mm/kasan/report.c:395
kasan_report+0xbb/0x1f0 mm/kasan/report.c:495
__lock_acquire+0x3ee7/0x56d0 kernel/locking/lockdep.c:4925
lock_acquire kernel/locking/lockdep.c:5668 [inline]
lock_acquire+0x1df/0x630 kernel/locking/lockdep.c:5633
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
powermate_config_complete+0x66/0x90 drivers/input/misc/powermate.c:202
__usb_hcd_giveback_urb+0x238/0x3f0 drivers/usb/core/hcd.c:1671
dummy_timer+0xeb8/0x2e40 drivers/usb/gadget/udc/dummy_hcd.c:1988
call_timer_fn+0x19b/0x5b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers.part.0+0x56b/0x9a0 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0x9c/0x190 kernel/time/timer.c:1803
__do_softirq+0x1f7/0xad8 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:113 [inline]
RIP: 0010:acpi_idle_do_entry+0x185/0x200 drivers/acpi/processor_idle.c:572
Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 65 48 8b 45 00 a8 08 75 c9 e8 26 8f b4 f8 66 90 0f 00 2d dd 37 ce 00 fb f4 <9c> 58 fa f6 c4 02 74 b1 5d e9 bd 8d b4 f8 48 89 ef 5d e9 c4 f2 ff
RSP: 0018:ffffc90000177d28 EFLAGS: 00000246
RAX: 00000000001c79a3 RBX: ffff888010fd2065 RCX: 1ffffffff19e34f1
RDX: 0000000000000000 RSI: ffffffff892bde60 RDI: ffffffff898583e0
RBP: ffff888010fb1d40 R08: 0000000000000001 R09: 0000000000000001
R10: ffffed10021f63a8 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888010fd2064 R14: ffffffff8bb84740 R15: ffff88814668e804
acpi_idle_enter+0x2c3/0x4c0 drivers/acpi/processor_idle.c:709
cpuidle_enter_state+0x152/0xc40 drivers/cpuidle/cpuidle.c:239
cpuidle_enter+0x45/0xa0 drivers/cpuidle/cpuidle.c:356
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3f7/0x590 kernel/sched/idle.c:303
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400
start_secondary+0x252/0x300 arch/x86/kernel/smpboot.c:262
secondary_startup_64_no_verify+0xce/0xdb
Allocated by task 146:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45
kasan_set_track+0x21/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:371 [inline]
____kasan_kmalloc mm/kasan/common.c:330 [inline]
__kasan_kmalloc+0xa1/0xb0 mm/kasan/common.c:380
kmalloc include/linux/slab.h:553 [inline]
kzalloc include/linux/slab.h:689 [inline]
powermate_probe+0x1fc/0x12f0 drivers/input/misc/powermate.c:323
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:560 [inline]
really_probe+0x5a6/0xa50 drivers/base/dd.c:639
__driver_probe_device+0x186/0x460 drivers/base/dd.c:778
driver_probe_device+0x44/0x110 drivers/base/dd.c:808
__device_attach_driver+0x14a/0x270 drivers/base/dd.c:936
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x19e/0x440 drivers/base/dd.c:1008
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0xa14/0x1b80 drivers/base/core.c:3517
usb_set_configuration+0xa01/0x18a0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x94/0x230 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:560 [inline]
really_probe+0x5a6/0xa50 drivers/base/dd.c:639
__driver_probe_device+0x186/0x460 drivers/base/dd.c:778
driver_probe_device+0x44/0x110 drivers/base/dd.c:808
__device_attach_driver+0x14a/0x270 drivers/base/dd.c:936
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x19e/0x440 drivers/base/dd.c:1008
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0xa14/0x1b80 drivers/base/core.c:3517
usb_new_device.cold+0x600/0xf02 drivers/usb/core/hub.c:2573
hub_port_connect drivers/usb/core/hub.c:5353 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
port_event drivers/usb/core/hub.c:5653 [inline]
hub_event+0x1c58/0x3a90 drivers/usb/core/hub.c:5735
process_one_work+0x8ba/0x14b0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x294/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Freed by task 4125:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45
kasan_set_track+0x21/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2a/0x40 mm/kasan/generic.c:511
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x160/0x1c0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1724 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1750
slab_free mm/slub.c:3661 [inline]
__kmem_cache_free+0xab/0x3b0 mm/slub.c:3674
usb_unbind_interface+0x183/0x7e0 drivers/usb/core/driver.c:458
__device_release_driver drivers/base/dd.c:1249 [inline]
device_release_driver_internal+0x3bc/0x600 drivers/base/dd.c:1275
bus_remove_device+0x295/0x550 drivers/base/bus.c:529
device_del+0x48d/0xb80 drivers/base/core.c:3704
usb_disable_device+0x29c/0x650 drivers/usb/core/message.c:1419
usb_disconnect.cold+0x1f5/0x623 drivers/usb/core/hub.c:2235
hub_port_connect drivers/usb/core/hub.c:5197 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
port_event drivers/usb/core/hub.c:5653 [inline]
hub_event+0x165f/0x3a90 drivers/usb/core/hub.c:5735
process_one_work+0x8ba/0x14b0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x294/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Last potentially related work creation:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45
__kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:481
call_rcu+0x99/0x820 kernel/rcu/tree.c:2798
free_fib_info net/ipv4/fib_semantics.c:256 [inline]
fib_create_info+0x1c32/0x4160 net/ipv4/fib_semantics.c:1580
fib_table_insert+0x155/0x1e20 net/ipv4/fib_trie.c:1236
fib_magic+0x363/0x470 net/ipv4/fib_frontend.c:1098
fib_add_ifaddr+0x2d8/0x4c0 net/ipv4/fib_frontend.c:1135
fib_inetaddr_event+0x13a/0x260 net/ipv4/fib_frontend.c:1434
notifier_call_chain+0x94/0x170 kernel/notifier.c:87
blocking_notifier_call_chain kernel/notifier.c:382 [inline]
blocking_notifier_call_chain+0x5d/0x80 kernel/notifier.c:370
__inet_insert_ifa+0x770/0xa20 net/ipv4/devinet.c:554
inet_insert_ifa net/ipv4/devinet.c:561 [inline]
inetdev_event+0xee9/0x1200 net/ipv4/devinet.c:1574
notifier_call_chain+0x94/0x170 kernel/notifier.c:87
call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
call_netdevice_notifiers net/core/dev.c:1997 [inline]
__dev_notify_flags+0xd0/0x230 net/core/dev.c:8581
dev_change_flags+0xf6/0x150 net/core/dev.c:8619
do_setlink+0x873/0x2dd0 net/core/rtnetlink.c:2788
__rtnl_newlink+0x94d/0x14c0 net/core/rtnetlink.c:3547
rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3594
rtnetlink_rcv_msg+0x32d/0x9a0 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2540
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x433/0x710 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x782/0xc30 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xab/0xe0 net/socket.c:734
__sys_sendto+0x1bb/0x290 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xd8/0x1b0 net/socket.c:2125
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
Second to last potentially related work creation:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45
__kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:481
call_rcu+0x99/0x820 kernel/rcu/tree.c:2798
free_fib_info net/ipv4/fib_semantics.c:256 [inline]
fib_create_info+0x1c32/0x4160 net/ipv4/fib_semantics.c:1580
fib_table_insert+0x155/0x1e20 net/ipv4/fib_trie.c:1236
fib_magic+0x363/0x470 net/ipv4/fib_frontend.c:1098
fib_add_ifaddr+0x14e/0x4c0 net/ipv4/fib_frontend.c:1120
fib_netdev_event+0x319/0x4a0 net/ipv4/fib_frontend.c:1480
notifier_call_chain+0x94/0x170 kernel/notifier.c:87
call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
call_netdevice_notifiers net/core/dev.c:1997 [inline]
__dev_notify_flags+0xd0/0x230 net/core/dev.c:8581
dev_change_flags+0xf6/0x150 net/core/dev.c:8619
do_setlink+0x873/0x2dd0 net/core/rtnetlink.c:2788
__rtnl_newlink+0x94d/0x14c0 net/core/rtnetlink.c:3547
rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3594
rtnetlink_rcv_msg+0x32d/0x9a0 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2540
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x433/0x710 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x782/0xc30 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xab/0xe0 net/socket.c:734
__sys_sendto+0x1bb/0x290 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xd8/0x1b0 net/socket.c:2125
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
The buggy address belongs to the object at ffff888075431600
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 88 bytes inside of
256-byte region [ffff888075431600, ffff888075431700)
The buggy address belongs to the physical page:
page:ffffea0001d50c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x75430
head:ffffea0001d50c00 order:1 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000001 ffff888010c41b40
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4094, tgid 4094 (syz-executor.2), ts 72825907076, free_ts 72610330540
prep_new_page mm/page_alloc.c:2539 [inline]
get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4288
__alloc_pages+0x1c7/0x5a0 mm/page_alloc.c:5555
alloc_slab_page mm/slub.c:1794 [inline]
allocate_slab+0x213/0x300 mm/slub.c:1939
new_slab mm/slub.c:1992 [inline]
___slab_alloc+0xa91/0x1400 mm/slub.c:3180
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3279
slab_alloc_node mm/slub.c:3364 [inline]
__kmem_cache_alloc_node+0x191/0x3e0 mm/slub.c:3437
kmalloc_trace+0x22/0x60 mm/slab_common.c:1045
kmalloc include/linux/slab.h:553 [inline]
kzalloc include/linux/slab.h:689 [inline]
____ip_mc_inc_group+0x1a7/0xa10 net/ipv4/igmp.c:1449
__ip_mc_inc_group net/ipv4/igmp.c:1484 [inline]
ip_mc_inc_group net/ipv4/igmp.c:1490 [inline]
ip_mc_up+0x12d/0x2b0 net/ipv4/igmp.c:1789
inetdev_event+0x1fe/0x1200 net/ipv4/devinet.c:1577
notifier_call_chain+0x94/0x170 kernel/notifier.c:87
call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
call_netdevice_notifiers net/core/dev.c:1997 [inline]
__dev_notify_flags+0xd0/0x230 net/core/dev.c:8581
dev_change_flags+0xf6/0x150 net/core/dev.c:8619
do_setlink+0x873/0x2dd0 net/core/rtnetlink.c:2788
__rtnl_newlink+0x94d/0x14c0 net/core/rtnetlink.c:3547
rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3594
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1459 [inline]
free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1509
free_unref_page_prepare mm/page_alloc.c:3387 [inline]
free_unref_page+0x19/0x4d0 mm/page_alloc.c:3483
__unfreeze_partials+0x17c/0x1a0 mm/slub.c:2586
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x62/0x80 mm/kasan/common.c:302
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slab.h:737 [inline]
slab_alloc_node mm/slub.c:3398 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc+0x2ac/0x3c0 mm/slub.c:3422
vm_area_alloc+0x17/0xe0 kernel/fork.c:458
mmap_region+0x359/0x1a60 mm/mmap.c:2605
do_mmap+0x5a6/0xd30 mm/mmap.c:1412
vm_mmap_pgoff+0x160/0x210 mm/util.c:520
ksys_mmap_pgoff+0x2df/0x490 mm/mmap.c:1458
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
Memory state around the buggy address:
ffff888075431500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888075431580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888075431600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888075431680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888075431700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 00 fc add %bh,%ah
6: ff (bad)
7: df 48 c1 fisttps -0x3f(%rax)
a: ea (bad)
b: 03 80 3c 02 00 75 add 0x7500023c(%rax),%eax
11: 65 48 8b 45 00 mov %gs:0x0(%rbp),%rax
16: a8 08 test $0x8,%al
18: 75 c9 jne 0xffffffe3
1a: e8 26 8f b4 f8 callq 0xf8b48f45
1f: 66 90 xchg %ax,%ax
21: 0f 00 2d dd 37 ce 00 verw 0xce37dd(%rip) # 0xce3805
28: fb sti
29: f4 hlt
* 2a: 9c pushfq <-- trapping instruction
2b: 58 pop %rax
2c: fa cli
2d: f6 c4 02 test $0x2,%ah
30: 74 b1 je 0xffffffe3
32: 5d pop %rbp
33: e9 bd 8d b4 f8 jmpq 0xf8b48df5
38: 48 89 ef mov %rbp,%rdi
3b: 5d pop %rbp
3c: e9 .byte 0xe9
3d: c4 .byte 0xc4
3e: f2 repnz
3f: ff .byte 0xff