------------[ cut here ]------------ WARNING: CPU: 0 PID: 741 at kernel/time/hrtimer.c:945 hrtimer_forward+0x1e3/0x270 kernel/time/hrtimer.c:945 Modules linked in: CPU: 0 PID: 741 Comm: syz-executor.2 Not tainted 5.14.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hrtimer_forward+0x1e3/0x270 kernel/time/hrtimer.c:945 Code: e5 4d 0f 4e ec e8 bd 72 10 00 4c 89 6b 20 e8 b4 72 10 00 4c 89 f0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 9d 72 10 00 <0f> 0b 45 31 f6 eb dd e8 91 72 10 00 4c 89 e0 48 8b 3c 24 48 99 48 RSP: 0018:ffffc90000007dc8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888034d76fa0 RCX: 0000000000000100 RDX: ffff88806ada9c40 RSI: ffffffff81653933 RDI: 0000000000000003 RBP: 00000000061a8000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff816537e8 R11: 0000000000000000 R12: 0000000000000000 R13: 0000014c4ee3006a R14: 0000000000000001 R15: ffffffff85322ba0 FS: 00007f6e37188700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e827000 CR3: 0000000079e5c000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: mac80211_hwsim_beacon+0x159/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1870 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__sanitizer_cov_trace_pc+0x3c/0x60 kernel/kcov.c:200 Code: 00 65 48 8b 14 25 00 f0 01 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 34 15 00 00 85 c0 74 2b 8b 82 10 15 00 00 83 f8 02 75 20 <48> 8b 8a 18 15 00 00 8b 92 14 15 00 00 48 8b 01 48 83 c0 01 48 39 RSP: 0018:ffffc9000189f1c8 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff88806f01a120 RCX: 0000000000000000 RDX: ffff88806ada9c40 RSI: ffffffff8210a787 RDI: 0000000000000003 RBP: ffffc9000189f278 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff8210a732 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000002 R14: ffff88806f01a148 R15: ffff8880296d6000 ext4_reserve_inode_write+0x127/0x230 fs/ext4/inode.c:5746 __ext4_mark_inode_dirty+0x17d/0x8d0 fs/ext4/inode.c:5910 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:5947 __mark_inode_dirty+0x45b/0xfe0 fs/fs-writeback.c:2398 mark_inode_dirty include/linux/fs.h:2403 [inline] dquot_alloc_space include/linux/quotaops.h:317 [inline] dquot_alloc_block include/linux/quotaops.h:334 [inline] ext4_mb_new_blocks+0x5d8/0x5230 fs/ext4/mballoc.c:5477 ext4_new_meta_blocks+0x2fe/0x360 fs/ext4/balloc.c:693 ext4_ext_grow_indepth fs/ext4/extents.c:1279 [inline] ext4_ext_create_new_leaf fs/ext4/extents.c:1384 [inline] ext4_ext_insert_extent+0x102b/0x4240 fs/ext4/extents.c:2058 ext4_split_extent_at+0x41a/0xdc0 fs/ext4/extents.c:3212 ext4_force_split_extent_at fs/ext4/extents.c:305 [inline] ext4_swap_extents+0x112f/0x1510 fs/ext4/extents.c:5671 move_extent_per_page fs/ext4/move_extent.c:360 [inline] ext4_move_extents+0x1cd4/0x4070 fs/ext4/move_extent.c:673 __ext4_ioctl+0x3a60/0x4850 fs/ext4/ioctl.c:988 ext4_ioctl+0x46/0x90 fs/ext4/ioctl.c:1277 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 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+0x44/0xae RIP: 0033:0x4665e9 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:00007f6e37188188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 00000000200005c0 RSI: 00000000c028660f RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffa15c85cf R14: 00007f6e37188300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: e5 4d in $0x4d,%eax 2: 0f 4e ec cmovle %esp,%ebp 5: e8 bd 72 10 00 callq 0x1072c7 a: 4c 89 6b 20 mov %r13,0x20(%rbx) e: e8 b4 72 10 00 callq 0x1072c7 13: 4c 89 f0 mov %r14,%rax 16: 48 83 c4 18 add $0x18,%rsp 1a: 5b pop %rbx 1b: 5d pop %rbp 1c: 41 5c pop %r12 1e: 41 5d pop %r13 20: 41 5e pop %r14 22: 41 5f pop %r15 24: c3 retq 25: e8 9d 72 10 00 callq 0x1072c7 2a: 0f 0b ud2 <-- trapping instruction 2c: 45 31 f6 xor %r14d,%r14d 2f: eb dd jmp 0xe 31: e8 91 72 10 00 callq 0x1072c7 36: 4c 89 e0 mov %r12,%rax 39: 48 8b 3c 24 mov (%rsp),%rdi 3d: 48 99 cqto 3f: 48 rex.W