Buffer I/O error on dev sr0, logical block 6, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer blk_update_request: I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 7, async page read watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.7:4081] Modules linked in: irq event stamp: 5087797 hardirqs last enabled at (5087796): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5087797): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (5087456): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (5087459): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 4081 Comm: syz-executor.7 Not tainted 5.10.233 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rht_ptr_rcu include/linux/rhashtable.h:369 [inline] RIP: 0010:__rhashtable_lookup+0x2bc/0x7d0 include/linux/rhashtable.h:599 Code: 16 48 89 44 24 28 48 c1 e8 03 48 89 44 24 30 e8 7a 36 8b fd 48 8b 44 24 20 80 38 00 0f 85 c1 04 00 00 48 8b 44 24 08 4c 8b 30 bf e1 30 00 31 ff 89 c3 89 c6 e8 a4 2f 8b fd 85 db 0f 85 a8 01 RSP: 0018:ffff88806cf09a60 EFLAGS: 00000246 RAX: ffff88801dfaf380 RBX: 0000000000000000 RCX: ffffffff83b5813a RDX: ffff888017ce9a40 RSI: ffffffff83b58186 RDI: 0000000000000005 RBP: 0000000000000000 R08: 00000000be963948 R09: ffffffff8686a6e7 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff88801b299688 R14: ffff88800db54030 R15: ffff88801dfaf300 FS: 00007f7756432700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1680c8c718 CR3: 00000000486ac000 CR4: 0000000000350ee0 Call Trace: rhltable_lookup include/linux/rhashtable.h:688 [inline] sta_info_hash_lookup net/mac80211/sta_info.c:162 [inline] sta_info_get_bss+0x12d/0x470 net/mac80211/sta_info.c:199 __ieee80211_rx_handle_packet net/mac80211/rx.c:4725 [inline] ieee80211_rx_list+0xdb0/0x2370 net/mac80211/rx.c:4846 ieee80211_rx_napi+0xdc/0x3c0 net/mac80211/rx.c:4867 ieee80211_rx include/net/mac80211.h:4502 [inline] ieee80211_tasklet_handler+0xd3/0x130 net/mac80211/main.c:237 tasklet_action_common.constprop.0+0x244/0x2f0 kernel/softirq.c:560 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:stack_trace_consume_entry+0xd9/0x160 kernel/stacktrace.c:93 Code: 00 00 8d 45 01 89 43 10 48 8b 03 48 8d 2c e8 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 75 64 48 89 75 00 <8b> 43 08 39 43 10 0f 92 c0 48 83 c4 08 5b 5d e9 a3 21 f0 02 83 e8 RSP: 0018:ffff888047536a90 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff888047536b68 RCX: 1ffff11008ea6d01 RDX: 1ffff11001c222af RSI: ffffffff83d63d03 RDI: ffff888047536b74 RBP: ffff88800e111578 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff11008ea6d43 R12: ffff888047536b68 R13: 0000000000000000 R14: ffff888017ce9a40 R15: ffff88801d65bc80 arch_stack_walk+0x73/0xf0 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 __save_stack_trace mm/kmemleak.c:563 [inline] create_object.isra.0+0x372/0xa20 mm/kmemleak.c:618 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x159/0x310 mm/slub.c:2909 radix_tree_node_alloc.constprop.0+0x1e3/0x300 lib/radix-tree.c:251 idr_get_free+0x4b5/0x8f0 lib/radix-tree.c:1503 idr_alloc_u32+0x170/0x2d0 lib/idr.c:46 idr_alloc_cyclic+0x102/0x230 lib/idr.c:125 __kernfs_new_node+0x117/0x860 fs/kernfs/dir.c:641 kernfs_new_node+0x18d/0x250 fs/kernfs/dir.c:711 __kernfs_create_file+0x51/0x350 fs/kernfs/file.c:985 sysfs_add_file_mode_ns+0x221/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x324/0xb30 fs/sysfs/group.c:149 internal_create_groups.part.0+0x90/0x140 fs/sysfs/group.c:189 internal_create_groups fs/sysfs/group.c:185 [inline] sysfs_create_groups+0x25/0x50 fs/sysfs/group.c:215 device_add_groups drivers/base/core.c:2095 [inline] device_add_attrs drivers/base/core.c:2254 [inline] device_add+0x138f/0x1c50 drivers/base/core.c:2962 netdev_register_kobject+0x17a/0x3b0 net/core/net-sysfs.c:1997 register_netdevice+0xd6e/0x1480 net/core/dev.c:10048 ieee802154_if_add+0xc93/0x1040 net/mac802154/iface.c:671 ieee802154_add_iface_deprecated+0x3e/0x60 net/mac802154/cfg.c:26 rdev_add_virtual_intf_deprecated net/ieee802154/rdev-ops.h:16 [inline] ieee802154_add_iface+0x44d/0x8f0 net/ieee802154/nl-phy.c:218 genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x33c/0x5a0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2485 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x549/0x7f0 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x90f/0xdf0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f7758ebcb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7756432188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7758fcff60 RCX: 00007f7758ebcb19 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00007f7758f16f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea08b129f R14: 00007f7756432300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 0 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 89 44 24 28 mov %rax,0x28(%rsp) 5: 48 c1 e8 03 shr $0x3,%rax 9: 48 89 44 24 30 mov %rax,0x30(%rsp) e: e8 7a 36 8b fd callq 0xfd8b368d 13: 48 8b 44 24 20 mov 0x20(%rsp),%rax 18: 80 38 00 cmpb $0x0,(%rax) 1b: 0f 85 c1 04 00 00 jne 0x4e2 21: 48 8b 44 24 08 mov 0x8(%rsp),%rax 26: 4c 8b 30 mov (%rax),%r14 * 29: e8 bf e1 30 00 callq 0x30e1ed <-- trapping instruction 2e: 31 ff xor %edi,%edi 30: 89 c3 mov %eax,%ebx 32: 89 c6 mov %eax,%esi 34: e8 a4 2f 8b fd callq 0xfd8b2fdd 39: 85 db test %ebx,%ebx 3b: 0f .byte 0xf 3c: 85 .byte 0x85 3d: a8 01 test $0x1,%al