====================================== | [ 17.990758][ T328] ================================================================== | [ 17.991129][ T328] BUG: KASAN: slab-use-after-free in kobject_put (lib/kobject.c:733) | [ 17.991396][ T328] Read of size 1 at addr ffff88800c1ba68c by task ip/328 | [ 17.991606][ T328] [ 17.991698][ T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.991701][ T328] Call Trace: [ 17.991702][ T328] [ 17.991704][ T328] dump_stack_lvl (lib/dump_stack.c:123) [ 17.991709][ T328] print_address_description.constprop.0 (mm/kasan/report.c:379) [ 17.991717][ T328] ? kobject_put (lib/kobject.c:733) [ 17.991721][ T328] print_report (mm/kasan/report.c:483) [ 17.991725][ T328] ? kobject_put (lib/kobject.c:733) [ 17.991727][ T328] ? kasan_addr_to_slab (./include/linux/mm.h:1245 mm/kasan/../slab.h:191 mm/kasan/common.c:47) [ 17.991731][ T328] ? kobject_put (lib/kobject.c:733) [ 17.991734][ T328] kasan_report (mm/kasan/report.c:597) [ 17.991738][ T328] ? kobject_put (lib/kobject.c:733) [ 17.991743][ T328] kobject_put (lib/kobject.c:733) [ 17.991746][ T328] netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670) [ 17.991751][ T328] ? dev_ingress_queue_create (net/core/dev.c:12299) [ 17.991755][ T328] ? generic_xdp_install (net/core/dev.c:11630) [ 17.991759][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 17.991766][ T328] rtnl_dellink (net/core/rtnetlink.c:3580) [ 17.991770][ T328] ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536) [ 17.991790][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 17.991797][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 17.991806][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 17.991811][ T328] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 17.991814][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 17.991818][ T328] ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536) [ 17.991821][ T328] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 17.991825][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 17.991829][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 17.991835][ T328] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 17.991840][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 17.991844][ T328] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 17.991851][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 17.991854][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 17.991858][ T328] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 17.991862][ T328] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 17.991866][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 17.991871][ T328] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 17.991876][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 17.991880][ T328] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 17.991885][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 17.991888][ T328] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 17.991895][ T328] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 17.991898][ T328] ? __copy_msghdr (net/socket.c:2556) [ 17.991905][ T328] ___sys_sendmsg (net/socket.c:2686) [ 17.991907][ T328] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 17.991909][ T328] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125) [ 17.991915][ T328] ? copy_msghdr_from_user (net/socket.c:2673) [ 17.991919][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 17.991923][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 17.991928][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 17.991943][ T328] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 17.991947][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 17.991953][ T328] __sys_sendmsg (net/socket.c:2716) [ 17.991955][ T328] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 17.991958][ T328] ? __sys_sendmsg_sock (net/socket.c:2701) [ 17.991965][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 17.991969][ T328] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 17.991974][ T328] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 17.991978][ T328] RIP: 0033:0x7f3ea1a0a1d7 [ 17.991982][ T328] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0e (bad) 1: 00 f7 add %dh,%bh 3: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 17.991985][ T328] RSP: 002b:00007ffde6c2ae68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 17.991989][ T328] RAX: ffffffffffffffda RBX: 00007ffde6c2b590 RCX: 00007f3ea1a0a1d7 [ 17.991991][ T328] RDX: 0000000000000000 RSI: 00007ffde6c2aed0 RDI: 0000000000000005 [ 17.991993][ T328] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 17.991995][ T328] R10: 00007f3ea1906f60 R11: 0000000000000246 R12: 0000000000000002 [ 17.991997][ T328] R13: 00000000690dfdf4 R14: 0000000000499600 R15: 0000000000000000 | [ 18.026647][ T328] refcount_t: underflow; use-after-free. | [ 18.026855][ T328] WARNING: CPU: 3 PID: 328 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 18.027191][ T328] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel netdevsim | [ 18.027839][ T328] Tainted: [B]=BAD_PAGE [ 18.027972][ T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.028209][ T328] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 18.028450][ T328] Code: 10 93 02 80 fb 01 0f 87 8b b8 d9 fe 83 e3 01 0f 85 51 ff ff ff c6 05 fb 0f 93 02 01 90 48 c7 c7 20 8d c5 ba e8 02 be 18 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 b0 63 a1 ff e9 ba fe ff ff All code ======== 0: 10 93 02 80 fb 01 adc %dl,0x1fb8002(%rbx) 6: 0f 87 8b b8 d9 fe ja 0xfffffffffed9b897 c: 83 e3 01 and $0x1,%ebx f: 0f 85 51 ff ff ff jne 0xffffffffffffff66 15: c6 05 fb 0f 93 02 01 movb $0x1,0x2930ffb(%rip) # 0x2931017 1c: 90 nop 1d: 48 c7 c7 20 8d c5 ba mov $0xffffffffbac58d20,%rdi 24: e8 02 be 18 ff call 0xffffffffff18be2b 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: e9 33 ff ff ff jmp 0xffffffffffffff66 33: 48 89 df mov %rbx,%rdi 36: e8 b0 63 a1 ff call 0xffffffffffa163eb 3b: e9 ba fe ff ff jmp 0xfffffffffffffefa Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: e9 33 ff ff ff jmp 0xffffffffffffff3c 9: 48 89 df mov %rbx,%rdi c: e8 b0 63 a1 ff call 0xffffffffffa163c1 11: e9 ba fe ff ff jmp 0xfffffffffffffed0 [ 18.029093][ T328] RSP: 0018:ffffc900008671f0 EFLAGS: 00010286 [ 18.029345][ T328] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 18.029605][ T328] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 18.029868][ T328] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff76be134 [ 18.030155][ T328] R10: 0000000000000003 R11: ffffc90000866d80 R12: 0000000000000001 [ 18.030438][ T328] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100 [ 18.030699][ T328] FS: 00007f3ea183c800(0000) GS:ffff88807997c000(0000) knlGS:0000000000000000 [ 18.031004][ T328] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.031234][ T328] CR2: 00007ffdea69fde8 CR3: 000000000fc14004 CR4: 0000000000772ef0 [ 18.031523][ T328] PKRU: 55555554 [ 18.031657][ T328] Call Trace: [ 18.031883][ T328] [ 18.031992][ T328] netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670) [ 18.032182][ T328] ? dev_ingress_queue_create (net/core/dev.c:12299) [ 18.032369][ T328] ? generic_xdp_install (net/core/dev.c:11630) [ 18.032546][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.032827][ T328] rtnl_dellink (net/core/rtnetlink.c:3580) [ 18.033003][ T328] ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536) [ 18.033243][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.033521][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.033697][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.033868][ T328] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 18.034053][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.034329][ T328] ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536) [ 18.034551][ T328] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 18.034723][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 18.034897][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.035176][ T328] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 18.035358][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 18.035533][ T328] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 18.035710][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 18.035977][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 18.036168][ T328] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 18.036351][ T328] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 18.036524][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.036793][ T328] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 18.036966][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 18.037147][ T328] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 18.037324][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 18.037505][ T328] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 18.037684][ T328] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 18.037902][ T328] ? __copy_msghdr (net/socket.c:2556) [ 18.038088][ T328] ___sys_sendmsg (net/socket.c:2686) [ 18.038263][ T328] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 18.038444][ T328] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125) [ 18.038662][ T328] ? copy_msghdr_from_user (net/socket.c:2673) [ 18.038839][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.039014][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.039203][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.039387][ T328] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 18.039564][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.039740][ T328] __sys_sendmsg (net/socket.c:2716) [ 18.039913][ T328] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 18.040144][ T328] ? __sys_sendmsg_sock (net/socket.c:2701) [ 18.040327][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 18.040504][ T328] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 18.040679][ T328] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 18.040898][ T328] RIP: 0033:0x7f3ea1a0a1d7 [ 18.041094][ T328] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0e (bad) 1: 00 f7 add %dh,%bh 3: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 18.041733][ T328] RSP: 002b:00007ffde6c2ae68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.042010][ T328] RAX: ffffffffffffffda RBX: 00007ffde6c2b590 RCX: 00007f3ea1a0a1d7 [ 18.042284][ T328] RDX: 0000000000000000 RSI: 00007ffde6c2aed0 RDI: 0000000000000005 [ 18.042555][ T328] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 18.042823][ T328] R10: 00007f3ea1906f60 R11: 0000000000000246 R12: 0000000000000002 [ 18.043098][ T328] R13: 00000000690dfdf4 R14: 0000000000499600 R15: 0000000000000000 | [ 23.209227][ T424] ------------[ cut here ]------------ | [ 23.209470][ T424] kernel BUG at net/core/net-sysfs.c:2246! | [ 23.209714][ T424] Oops: invalid opcode: 0000 [#1] SMP KASAN | [ 23.210369][ T424] Tainted: [B]=BAD_PAGE, [W]=WARN [ 23.210562][ T424] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.210799][ T424] RIP: 0010:netdev_release (net/core/net-sysfs.c:2246 net/core/net-sysfs.c:2242) [ 23.211000][ T424] Code: 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 20 48 8b bb e0 fa ff ff e8 8c f4 d7 fe 48 89 ef 5b 5d e9 52 01 d8 fe 90 <0f> 0b e8 fa d7 de fe eb bc e8 53 d8 de fe eb d9 90 f3 0f 1e fa 0f All code ======== 0: 00 00 add %al,(%rax) 2: 00 fc add %bh,%ah 4: ff lcall (bad) 5: df 48 89 fisttps -0x77(%rax) 8: fa cli 9: 48 c1 ea 03 shr $0x3,%rdx d: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 11: 75 20 jne 0x33 13: 48 8b bb e0 fa ff ff mov -0x520(%rbx),%rdi 1a: e8 8c f4 d7 fe call 0xfffffffffed7f4ab 1f: 48 89 ef mov %rbp,%rdi 22: 5b pop %rbx 23: 5d pop %rbp 24: e9 52 01 d8 fe jmp 0xfffffffffed8017b 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: e8 fa d7 de fe call 0xfffffffffeded82b 31: eb bc jmp 0xffffffffffffffef 33: e8 53 d8 de fe call 0xfffffffffeded88b 38: eb d9 jmp 0x13 3a: 90 nop 3b: f3 0f 1e fa endbr64 3f: 0f .byte 0xf Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: e8 fa d7 de fe call 0xfffffffffeded801 7: eb bc jmp 0xffffffffffffffc5 9: e8 53 d8 de fe call 0xfffffffffeded861 e: eb d9 jmp 0xffffffffffffffe9 10: 90 nop 11: f3 0f 1e fa endbr64 15: 0f .byte 0xf [ 23.211681][ T424] RSP: 0018:ffffc90000677a28 EFLAGS: 00010297 [ 23.211932][ T424] RAX: 0000000000000000 RBX: ffff88800e892650 RCX: ffffffffba902b51 [ 23.212222][ T424] RDX: 1ffff11001d124c6 RSI: ffffffffbac5d540 RDI: ffff88800e892630 [ 23.212505][ T424] RBP: ffff88800e892000 R08: 0000000000000001 R09: ffffed1001d124d1 [ 23.212789][ T424] R10: ffff88800e89268b R11: ffffffffb82000b0 R12: ffff88800a12e800 [ 23.213075][ T424] R13: 0000000000000000 R14: dead000000000122 R15: dead000000000100 [ 23.213363][ T424] FS: 00007f7c82092740(0000) GS:ffff8880797fc000(0000) knlGS:0000000000000000 [ 23.213693][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.213965][ T424] CR2: 00007f5f5805b5f0 CR3: 00000000096d5004 CR4: 0000000000772ef0 [ 23.214250][ T424] PKRU: 55555554 [ 23.214395][ T424] Call Trace: [ 23.214537][ T424] [ 23.214634][ T424] device_release (drivers/base/core.c:2570) [ 23.214830][ T424] kobject_cleanup (lib/kobject.c:693) [ 23.215039][ T424] netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670) [ 23.215235][ T424] ? generic_xdp_install (net/core/dev.c:11630) [ 23.215429][ T424] ? kfree (mm/slub.c:6630 mm/slub.c:6837) [ 23.215575][ T424] nsim_destroy (drivers/net/netdevsim/netdev.c:1186) netdevsim [ 23.215781][ T424] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:441 drivers/net/netdevsim/dev.c:1474) netdevsim [ 23.216028][ T424] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1483 drivers/net/netdevsim/dev.c:1707) netdevsim [ 23.216276][ T424] nsim_drv_remove (drivers/net/netdevsim/dev.c:1724) netdevsim [ 23.216470][ T424] device_release_driver_internal (drivers/base/dd.c:1276 drivers/base/dd.c:1297) [ 23.216707][ T424] ? klist_put (lib/klist.c:220) [ 23.216862][ T424] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:586) [ 23.217050][ T424] device_del (drivers/base/core.c:3879) [ 23.217199][ T424] ? __device_link_del (drivers/base/core.c:3833) [ 23.217387][ T424] device_unregister (drivers/base/core.c:3796 drivers/base/core.c:3920) [ 23.217572][ T424] nsim_bus_exit (drivers/net/netdevsim/bus.c:522) netdevsim [ 23.217768][ T424] nsim_module_exit (drivers/net/netdevsim/netdev.c:607) netdevsim [ 23.217972][ T424] __do_sys_delete_module (kernel/module/main.c:836) [ 23.218166][ T424] ? module_flags (kernel/module/main.c:778) [ 23.218360][ T424] ? alloc_file_clone (fs/file_table.c:571) [ 23.218546][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 23.218737][ T424] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 23.218926][ T424] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 23.219158][ T424] RIP: 0033:0x7f7c821c16eb [ 23.219361][ T424] Code: 73 01 c3 48 8b 0d 0d 97 0e 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d dd 96 0e 00 f7 d8 64 89 01 48 All code ======== 0: 73 01 jae 0x3 2: c3 ret 3: 48 8b 0d 0d 97 0e 00 mov 0xe970d(%rip),%rcx # 0xe9717 a: f7 d8 neg %eax c: 64 89 01 mov %eax,%fs:(%rcx) f: 48 83 c8 ff or $0xffffffffffffffff,%rax 13: c3 ret 14: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 1b: 00 00 00 1e: 90 nop 1f: f3 0f 1e fa endbr64 23: b8 b0 00 00 00 mov $0xb0,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d dd 96 0e 00 mov 0xe96dd(%rip),%rcx # 0xe9717 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d dd 96 0e 00 mov 0xe96dd(%rip),%rcx # 0xe96ed 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 23.220033][ T424] RSP: 002b:00007ffc444deb38 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 [ 23.220331][ T424] RAX: ffffffffffffffda RBX: 00005587e63d4960 RCX: 00007f7c821c16eb [ 23.220613][ T424] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 00005587e63d49c8 [ 23.220902][ T424] RBP: 00005587e63d4960 R08: 0000000000000000 R09: 0000000000000000 [ 23.221181][ T424] R10: 00007f7c82250ac0 R11: 0000000000000206 R12: 00005587e63d49c8 Finger prints: print_report:kasan_report:kobject_put:netdev_run_todo:rtnl_dellink refcount_warn_saturate:netdev_run_todo:rtnl_dellink:rtnetlink_rcv_msg:netlink_rcv_skb netdev_release:device_release:kobject_cleanup:netdev_run_todo:nsim_destroy