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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | WARNING: refcount bug in nr_release hams | 1 | 2214d | 2212d | 11/28 | fixed on 2019/03/06 07:43 | |||
| upstream | WARNING: refcount bug in nr_release (3) hams | 1 | 1170d | 1166d | 0/28 | auto-closed as invalid on 2022/01/13 09:49 | |||
| upstream | WARNING: refcount bug in nr_release (2) hams | 2 | 1239d | 1228d | 0/28 | auto-closed as invalid on 2021/11/05 17:37 |
------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 1 PID: 3140 at lib/refcount.c:25 refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 Modules linked in: CPU: 1 PID: 3140 Comm: syz-executor379 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: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 lr : refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 sp : ffff800012993ae0 x29: ffff800012993ae0 x28: 00000000002e0003 x27: 000000000000005f x26: ffff0000ca6324e0 x25: 0000000000000000 x24: ffff0000ca51c000 x23: ffff80000b1ef30c x22: 0000000000000000 x21: ffff0000ca51bf40 x20: 0000000000000002 x19: ffff80000d937000 x18: 00000000000000c0 x17: ffff80000dd7a698 x16: ffff80000dbb8658 x15: ffff0000cee4cf80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cee4cf80 x11: ff808000081c39d0 x10: 0000000000000000 x9 : 540cb56992f5df00 x8 : 540cb56992f5df00 x7 : ffff800008197c80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 000000000000002a Call trace: refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] sock_hold include/net/sock.h:774 [inline] nr_release+0x218/0x254 net/netrom/af_netrom.c:520 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3bc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x208 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbb8 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb30 kernel/signal.c:2857 do_signal+0x128/0x424 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1d0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:625 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 irq event stamp: 6136 hardirqs last enabled at (6135): [<ffff8000081c1c3c>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264 hardirqs last disabled at (6136): [<ffff80000c000f0c>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (6066): [<ffff80000b1f1e24>] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (6066): [<ffff80000b1f1e24>] release_sock+0xf4/0x108 net/core/sock.c:3419 softirqs last disabled at (6064): [<ffff80000b1f1d5c>] spin_lock_bh include/linux/spinlock.h:354 [inline] softirqs last disabled at (6064): [<ffff80000b1f1d5c>] release_sock+0x2c/0x108 net/core/sock.c:3406 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: nr_t1timer_expiry+0x0/0x1d0 net/netrom/nr_timer.c:46 WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 3140 Comm: syz-executor379 Tainted: G W 6.0.0-rc3-syzkaller-16800-g85413d1e802e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:502 [inline] pc : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 lr : debug_print_object lib/debugobjects.c:502 [inline] lr : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 sp : ffff800012993a10 x29: ffff800012993a10 x28: 00000000002e0003 x27: 000000000000005f x26: ffff0000ca6324e0 x25: 0000000000000000 x24: ffff0000ca51c000 x23: ffff80000f04ef00 x22: ffff80000d37c000 x21: ffff80000f115000 x20: ffff80000c04f5b8 x19: ffff0000cfda4d60 x18: 00000000000000c0 x17: 203a657079742074 x16: ffff80000dbb8658 x15: ffff0000cee4cf80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cee4cf80 x11: ff808000081c39d0 x10: 0000000000000000 x9 : 540cb56992f5df00 x8 : 540cb56992f5df00 x7 : ffff800008197c80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcd0 x1 : 0000000100000000 x0 : 000000000000006c Call trace: debug_print_object lib/debugobjects.c:502 [inline] debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] del_timer+0x34/0x1a8 kernel/time/timer.c:1257 sk_stop_timer+0x24/0xa4 net/core/sock.c:3294 nr_stop_t1timer+0x24/0x34 net/netrom/nr_timer.c:84 nr_disconnect+0x24/0xc0 net/netrom/nr_subr.c:261 nr_release+0x178/0x254 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3bc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x208 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbb8 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb30 kernel/signal.c:2857 do_signal+0x128/0x424 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1d0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:625 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 irq event stamp: 6220 hardirqs last enabled at (6219): [<ffff8000081c1c3c>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264 hardirqs last disabled at (6220): [<ffff80000c000f0c>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (6196): [<ffff80000b1fc1e4>] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (6196): [<ffff80000b1fc1e4>] lock_sock_nested+0xc0/0xd8 net/core/sock.c:3400 softirqs last disabled at (6194): [<ffff80000b1fc1ac>] spin_lock_bh include/linux/spinlock.h:354 [inline] softirqs last disabled at (6194): [<ffff80000b1fc1ac>] lock_sock_nested+0x88/0xd8 net/core/sock.c:3396 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:177 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_sub_and_test include/linux/refcount.h:272 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_dec_and_test include/linux/refcount.h:315 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: refcount_dec_and_test include/linux/refcount.h:333 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: sock_put include/net/sock.h:1961 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: nr_t2timer_expiry+0x0/0xf4 net/netrom/nr_timer.c:246 WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 3140 Comm: syz-executor379 Tainted: G W 6.0.0-rc3-syzkaller-16800-g85413d1e802e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:502 [inline] pc : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 lr : debug_print_object lib/debugobjects.c:502 [inline] lr : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 sp : ffff800012993a10 x29: ffff800012993a10 x28: 00000000002e0003 x27: 000000000000005f x26: ffff0000ca6324e0 x25: 0000000000000000 x24: ffff0000ca51c000 x23: ffff80000f04ef00 x22: ffff80000d37c000 x21: ffff80000f115000 x20: ffff80000c04f5b8 x19: ffff0000cfda4db0 x18: 00000000000000c0 x17: 203a657079742074 x16: ffff80000dbb8658 x15: ffff0000cee4cf80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cee4cf80 x11: ff808000081c39d0 x10: 0000000000000000 x9 : 540cb56992f5df00 x8 : 540cb56992f5df00 x7 : ffff800008197c80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 000000000000006b Call trace: debug_print_object lib/debugobjects.c:502 [inline] debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] del_timer+0x34/0x1a8 kernel/time/timer.c:1257 sk_stop_timer+0x24/0xa4 net/core/sock.c:3294 nr_stop_t2timer+0x24/0x34 net/netrom/nr_timer.c:89 nr_disconnect+0x2c/0xc0 net/netrom/nr_subr.c:262 nr_release+0x178/0x254 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3bc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x208 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbb8 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb30 kernel/signal.c:2857 do_signal+0x128/0x424 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1d0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:625 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 irq event stamp: 6378 hardirqs last enabled at (6377): [<ffff8000081c1c3c>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264 hardirqs last disabled at (6378): [<ffff80000c000f0c>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (6372): [<ffff8000080102e4>] _stext+0x2e4/0x37c softirqs last disabled at (6357): [<ffff800008104658>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (6357): [<ffff800008104658>] invoke_softirq+0x70/0xbc kernel/softirq.c:452 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:177 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_sub_and_test include/linux/refcount.h:272 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_dec_and_test include/linux/refcount.h:315 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: refcount_dec_and_test include/linux/refcount.h:333 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: sock_put include/net/sock.h:1961 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: nr_t4timer_expiry+0x0/0xd0 net/netrom/nr_timer.c:162 WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 3140 Comm: syz-executor379 Tainted: G W 6.0.0-rc3-syzkaller-16800-g85413d1e802e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:502 [inline] pc : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 lr : debug_print_object lib/debugobjects.c:502 [inline] lr : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 sp : ffff800012993a10 x29: ffff800012993a10 x28: 00000000002e0003 x27: 000000000000005f x26: ffff0000ca6324e0 x25: 0000000000000000 x24: ffff0000ca51c000 x23: ffff80000f04ef00 x22: ffff80000d37c000 x21: ffff80000f115000 x20: ffff80000c04f5b8 x19: ffff0000cfda4e00 x18: 00000000000000c0 x17: 203a657079742074 x16: ffff80000dbb8658 x15: ffff0000cee4cf80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cee4cf80 x11: ff808000081c39d0 x10: 0000000000000000 x9 : 540cb56992f5df00 x8 : 540cb56992f5df00 x7 : ffff800008197c80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcd0 x1 : 0000000100000000 x0 : 000000000000006b Call trace: debug_print_object lib/debugobjects.c:502 [inline] debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] del_timer+0x34/0x1a8 kernel/time/timer.c:1257 sk_stop_timer+0x24/0xa4 net/core/sock.c:3294 nr_stop_t4timer+0x24/0x34 net/netrom/nr_timer.c:94 nr_disconnect+0x34/0xc0 net/netrom/nr_subr.c:263 nr_release+0x178/0x254 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3bc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x208 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbb8 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb30 kernel/signal.c:2857 do_signal+0x128/0x424 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1d0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:625 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 irq event stamp: 6478 hardirqs last enabled at (6477): [<ffff8000081c1c3c>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264 hardirqs last disabled at (6478): [<ffff80000c000f0c>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (6452): [<ffff8000080102e4>] _stext+0x2e4/0x37c softirqs last disabled at (6381): [<ffff800008104658>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (6381): [<ffff800008104658>] invoke_softirq+0x70/0xbc kernel/softirq.c:452 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:177 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_sub_and_test include/linux/refcount.h:272 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_dec_and_test include/linux/refcount.h:315 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: refcount_dec_and_test include/linux/refcount.h:333 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: sock_put include/net/sock.h:1961 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: nr_idletimer_expiry+0x0/0x184 net/netrom/nr_timer.c:173 WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 3140 Comm: syz-executor379 Tainted: G W 6.0.0-rc3-syzkaller-16800-g85413d1e802e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:502 [inline] pc : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 lr : debug_print_object lib/debugobjects.c:502 [inline] lr : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 sp : ffff800012993a10 x29: ffff800012993a10 x28: 00000000002e0003 x27: 000000000000005f x26: ffff0000ca6324e0 x25: 0000000000000000 x24: ffff0000ca51c000 x23: ffff80000f04ef00 x22: ffff80000d37c000 x21: ffff80000f115000 x20: ffff80000c04f5b8 x19: ffff0000cfda4e50 x18: 00000000000000c0 x17: 203a657079742074 x16: ffff80000dbb8658 x15: ffff0000cee4cf80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cee4cf80 x11: ff808000081c39d0 x10: 0000000000000000 x9 : 540cb56992f5df00 x8 : 540cb56992f5df00 x7 : ffff800008197c80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcd0 x1 : 0000000100000000 x0 : 000000000000006e Call trace: debug_print_object lib/debugobjects.c:502 [inline] debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] del_timer+0x34/0x1a8 kernel/time/timer.c:1257 sk_stop_timer+0x24/0xa4 net/core/sock.c:3294 nr_stop_idletimer+0x24/0x34 net/netrom/nr_timer.c:99 nr_disconnect+0x3c/0xc0 net/netrom/nr_subr.c:264 nr_release+0x178/0x254 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3bc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x208 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbb8 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb30 kernel/signal.c:2857 do_signal+0x128/0x424 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1d0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:625 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 irq event stamp: 6674 hardirqs last enabled at (6673): [<ffff8000081c1c3c>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264 hardirqs last disabled at (6674): [<ffff80000c000f0c>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (6648): [<ffff8000080102e4>] _stext+0x2e4/0x37c softirqs last disabled at (6481): [<ffff800008104658>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (6481): [<ffff800008104658>] invoke_softirq+0x70/0xbc kernel/softirq.c:452 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:177 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_sub_and_test include/linux/refcount.h:272 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: __refcount_dec_and_test include/linux/refcount.h:315 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: refcount_dec_and_test include/linux/refcount.h:333 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: sock_put include/net/sock.h:1961 [inline] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: nr_heartbeat_expiry+0x0/0x1e4 net/netrom/nr_timer.c:202 WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 3140 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 3140 Comm: syz-executor379 Tainted: G W 6.0.0-rc3-syzkaller-16800-g85413d1e802e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:502 [inline] pc : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 lr : debug_print_object lib/debugobjects.c:502 [inline] lr : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 sp : ffff800012993a00 x29: ffff800012993a00 x28: 00000000002e0003 x27: 000000000000005f x26: ffff0000ca6324e0 x25: 0000000000000000 x24: ffff0000ca51c000 x23: ffff80000f04ef00 x22: ffff80000d37c000 x21: ffff80000f115000 x20: ffff80000c04f5b8 x19: ffff0000cfda4af8 x18: 00000000000000c0 x17: 203a657079742074 x16: ffff80000dbb8658 x15: ffff0000cee4cf80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cee4cf80 x11: ff808000081c39d0 x10: 0000000000000000 x9 : 540cb56992f5df00 x8 : 540cb56992f5df00 x7 : ffff800008197c80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcd0 x1 : 0000000100000000 x0 : 000000000000006e Call trace: debug_print_object lib/debugobjects.c:502 [inline] debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] del_timer+0x34/0x1a8 kernel/time/timer.c:1257 sk_stop_timer+0x24/0xa4 net/core/sock.c:3294 nr_stop_heartbeat+0x24/0x34 net/netrom/nr_timer.c:104 nr_destroy_socket+0xb4/0x278 net/netrom/af_netrom.c:263 nr_release+0x180/0x254 net/netrom/af_netrom.c:530 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3bc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x208 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbb8 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb30 kernel/signal.c:2857 do_signal+0x128/0x424 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1d0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:625 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 irq event stamp: 6798 hardirqs last enabled at (6797): [<ffff8000081c1c3c>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264 hardirqs last disabled at (6798): [<ffff80000c000f0c>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (6772): [<ffff80000b912d3c>] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (6772): [<ffff80000b912d3c>] nr_remove_socket net/netrom/af_netrom.c:95 [inline] softirqs last enabled at (6772): [<ffff80000b912d3c>] nr_destroy_socket+0xac/0x278 net/netrom/af_netrom.c:261 softirqs last disabled at (6770): [<ffff80000b912cb8>] spin_lock_bh include/linux/spinlock.h:354 [inline] softirqs last disabled at (6770): [<ffff80000b912cb8>] nr_remove_socket net/netrom/af_netrom.c:93 [inline] softirqs last disabled at (6770): [<ffff80000b912cb8>] nr_destroy_socket+0x28/0x278 net/netrom/af_netrom.c:261 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 1 PID: 3140 at lib/refcount.c:28 refcount_warn_saturate+0x1a0/0x1c8 lib/refcount.c:28 Modules linked in: CPU: 1 PID: 3140 Comm: syz-executor379 Tainted: G W 6.0.0-rc3-syzkaller-16800-g85413d1e802e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : refcount_warn_saturate+0x1a0/0x1c8 lib/refcount.c:28 lr : refcount_warn_saturate+0x1a0/0x1c8 lib/refcount.c:28 sp : ffff800012993ae0 x29: ffff800012993ae0 x28: 00000000002e0003 x27: 000000000000005f x26: ffff0000ca6324e0 x25: 0000000000000000 x24: ffff0000ca51c000 x23: ffff80000b1ef30c x22: 0000000000000000 x21: 00000000c0000000 x20: 0000000000000003 x19: ffff80000d937000 x18: 00000000000000c0 x17: 203a657079742074 x16: ffff80000dbb8658 x15: ffff0000cee4cf80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cee4cf80 x11: ff808000081c39d0 x10: 0000000000000000 x9 : 540cb56992f5df00 x8 : 540cb56992f5df00 x7 : ffff800008197c80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: refcount_warn_saturate+0x1a0/0x1c8 lib/refcount.c:28 __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] sock_put include/net/sock.h:1961 [inline] nr_release+0x22c/0x254 net/netrom/af_netrom.c:554 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3bc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x208 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbb8 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb30 kernel/signal.c:2857 do_signal+0x128/0x424 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1d0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:625 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 irq event stamp: 6848 hardirqs last enabled at (6847): [<ffff8000081c1c3c>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264 hardirqs last disabled at (6848): [<ffff80000c000f0c>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (6826): [<ffff80000b1f1e24>] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (6826): [<ffff80000b1f1e24>] release_sock+0xf4/0x108 net/core/sock.c:3419 softirqs last disabled at (6824): [<ffff80000b1f1d5c>] spin_lock_bh include/linux/spinlock.h:354 [inline] softirqs last disabled at (6824): [<ffff80000b1f1d5c>] release_sock+0x2c/0x108 net/core/sock.c:3406 ---[ end trace 0000000000000000 ]---
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022/09/06 05:36 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 85413d1e802e | 9dcd38fc | .config | console log | report | syz | C | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/09/30 14:07 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 5911b92626df | 1d385642 | .config | console log | report | syz | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/06/25 18:58 | upstream | 8c23f235a6a8 | a371c43c | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | WARNING: refcount bug in nr_release | |||
| 2022/04/15 03:30 | upstream | b9b4c79e5830 | b17b2923 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | WARNING: refcount bug in nr_release | |||
| 2023/02/14 00:33 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2d3827b3f393 | 93ae7e0a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2023/01/20 06:16 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 9598c377d828 | 559a440a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2023/01/13 15:54 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 9598c377d828 | 529798b0 | .config | console log | report | info | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | |||
| 2022/12/10 06:14 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a5541c0811a0 | 67be1ae7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/11/22 19:32 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 65762d97e6fa | 9da37ae8 | .config | console log | report | info | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | |||
| 2022/10/27 15:03 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 86777b7f | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/24 17:34 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | ff2fe65d | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/24 06:34 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 23bf86af | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/15 18:27 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 67cb024c | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/14 05:29 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 4954e4b2 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/14 05:04 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 4954e4b2 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/12 15:32 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 89b5a509 | .config | console log | report | info | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | |||
| 2022/10/12 02:49 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 16a9c9e0 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/11 14:57 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 1353c374 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/10/04 14:18 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | eab8f949 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/09/29 18:30 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 5911b92626df | 1d385642 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/09/20 20:42 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 5aa266bb455b | c4b8ccfd | .config | console log | report | info | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | |||
| 2022/09/13 08:47 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a6b443748715 | a08652b0 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/09/10 14:28 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a6b443748715 | 356d8217 | .config | console log | report | info | [disk image] [vmlinux] | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release | ||
| 2022/09/05 21:25 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 85413d1e802e | 9dcd38fc | .config | console log | report | info | ci-upstream-gce-arm64 | WARNING: refcount bug in nr_release |