watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.7:4089] Modules linked in: irq event stamp: 3292139 hardirqs last enabled at (3292138): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3292139): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3290398): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3290401): [] irq_exit_rcu+0x94/0xc0 CPU: 1 UID: 0 PID: 4089 Comm: syz-executor.7 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_acquire.part.0+0x10e/0x320 Code: b6 c9 e8 35 a7 ff ff b8 ff ff ff ff 48 83 c4 28 65 0f c1 05 2c 88 d2 7e 83 f8 01 0f 85 aa 01 00 00 48 85 ed 0f 85 9b 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff88806cf09b20 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff1100d9e1367 RCX: 1ffff1100d9e134c RDX: 1ffff11007ea3827 RSI: 0000000000000001 RDI: ffffffff878e6e38 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff0fda9e9 R10: ffffffff87ed4f4f R11: 00000000000c2f81 R12: ffff88803fb98168 R13: ffff88803fb9b2f8 R14: ffff888042b672f0 R15: 0000000000000000 FS: 00007f98a5c52700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000565258227110 CR3: 0000000009506000 CR4: 0000000000350ef0 Call Trace: _raw_spin_lock_bh+0x33/0x40 cfg80211_put_bss+0x40/0x280 ieee80211_scan_rx+0x4ae/0xac0 ieee80211_rx_list+0x21ec/0x2cf0 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:vmalloc_info_show+0x47d/0xbb0 Code: 4b 20 44 89 e0 4c 8d 3c c1 4c 89 f9 48 c1 e9 03 42 80 3c 29 00 0f 85 81 05 00 00 4d 8b 3f 4c 89 f9 48 c1 e9 03 42 80 3c 29 00 <0f> 85 79 05 00 00 49 8b 07 48 c1 e8 3a 4c 8d 7c 85 00 4c 89 f9 48 RSP: 0018:ffff88803f467890 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88800e5cc400 RCX: 1ffffd4000169ea8 RDX: 0000000000040000 RSI: ffffffff817f4c23 RDI: 0000000000000005 RBP: ffff88800ab672e0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000200 R11: 00000000000c2f81 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000001 R15: ffffea0000b4f540 seq_read_iter+0x50e/0x1300 proc_reg_read_iter+0x20e/0x2e0 copy_splice_read+0x5c6/0xb70 do_splice_read+0x1f8/0x2a0 splice_direct_to_actor+0x2a9/0x9d0 do_splice_direct+0x17a/0x250 do_sendfile+0xaf1/0xe40 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f98a86dcb19 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:00007f98a5c52188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f98a87eff60 RCX: 00007f98a86dcb19 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f98a8736f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000010000027f R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdd996d2bf R14: 00007f98a5c52300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 EXT4-fs: EXT4-fs: inode_readahead_blks must be 0 or a power of 2 smaller than 2^31 EXT4-fs: EXT4-fs: inode_readahead_blks must be 0 or a power of 2 smaller than 2^31 UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 3760 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 44 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 44 bytes leftover after parsing attributes in process `syz-executor.4'. cgroup: Bad value for 'name' audit: type=1400 audit(1729205665.234:10): avc: denied { block_suspend } for pid=4357 comm="syz-executor.3" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 audit: type=1400 audit(1729205665.582:11): avc: denied { write } for pid=4377 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 ---------------- Code disassembly (best guess): 0: b6 c9 mov $0xc9,%dh 2: e8 35 a7 ff ff callq 0xffffa73c 7: b8 ff ff ff ff mov $0xffffffff,%eax c: 48 83 c4 28 add $0x28,%rsp 10: 65 0f c1 05 2c 88 d2 xadd %eax,%gs:0x7ed2882c(%rip) # 0x7ed28844 17: 7e 18: 83 f8 01 cmp $0x1,%eax 1b: 0f 85 aa 01 00 00 jne 0x1cb 21: 48 85 ed test %rbp,%rbp 24: 0f 85 9b 01 00 00 jne 0x1c5 * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 01 c3 add %rax,%rbx 37: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 3e: 48 rex.W 3f: c7 .byte 0xc7