program:
r0 = openat$vhost_vsock(0xffffffffffffff9c, 0x0, 0x2, 0x0)
syz_mount_image$ext4(&(0x7f0000000580)='ext4\x00', &(0x7f00000005c0)='./file0\x00', 0x0, &(0x7f0000000600), 0x1, 0x56e, &(0x7f0000000640)="$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")
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cpu.stat\x00', 0x275a, 0x0)
ftruncate(r1, 0x201bf)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r1, 0x0)
r2 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
r3 = ioctl$KVM_CREATE_VM(r2, 0xae01, 0x0)
open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x131)
mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x5000, 0x0)
r4 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
ioctl$LOOP_SET_STATUS64(r4, 0x4c04, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x1, 0x8005, 0x0, 0x0, 0x19, 0xd, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x8]})
r5 = ioctl$KVM_CREATE_VCPU(r3, 0xae41, 0x0)
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r5, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000140)=[@text64={0x40, 0x0}], 0x1, 0x74, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
r7 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
r8 = ioctl$KVM_CREATE_VM(r7, 0xae01, 0x0)
r9 = eventfd2(0xd, 0x80000)
ioctl$KVM_IRQFD(r8, 0x4020ae76, &(0x7f0000000080)={r9, 0x2, 0x1})
r10 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0)
r11 = ioctl$KVM_CREATE_VCPU(r10, 0xae41, 0x0)
ioctl$KVM_GET_VCPU_EVENTS(r11, 0x4048aecb, &(0x7f0000000080))
ioctl$KVM_RUN(r11, 0xae80, 0x0)
ioctl$VHOST_SET_FEATURES(r0, 0x4008af00, &(0x7f0000000080)=0x200000000)
ioctl$VHOST_VSOCK_SET_RUNNING(0xffffffffffffffff, 0x4004af61, &(0x7f0000000200)=0x4)
sendmsg$nl_generic(0xffffffffffffffff, 0x0, 0x40)
capset(&(0x7f0000000040)={0x20080522}, 0x0)
openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
[ 85.007971][ T5340] loop0: detected capacity change from 0 to 512
[ 85.020293][ T46] Bluetooth: hci0: command tx timeout
[ 85.173387][ T5340] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 85.179704][ T5340] ext4 filesystem being mounted at /0/file0 supports timestamps until 2038-01-19 (0x7fffffff)
[ 85.275875][ T5340] loop0: detected capacity change from 512 to 64
[ 85.286555][ T1063] EXT4-fs error (device loop0): ext4_validate_block_bitmap:423: comm kworker/u4:9: bg 0: bad block bitmap checksum
[ 85.305201][ T1063] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 4 with error 28
[ 85.310766][ T1063] EXT4-fs (loop0): This should not happen!! Data will be lost
[ 85.310766][ T1063]
[ 85.338752][ T5340] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6298: Out of memory
[ 85.345158][ T1063] EXT4-fs (loop0): Total free blocks count 0
[ 85.347854][ T1063] EXT4-fs (loop0): Free/Dirty block details
[ 85.350611][ T5340] EXT4-fs error (device loop0): ext4_setattr:5984: inode #18: comm syz.0.0: mark_inode_dirty error
[ 85.357201][ T1063] EXT4-fs (loop0): free_blocks=0
[ 85.359535][ T1063] EXT4-fs (loop0): dirty_blocks=4
[ 85.362277][ T1063] EXT4-fs (loop0): Block reservation details
[ 85.366225][ T5340] EXT4-fs error (device loop0) in ext4_setattr:6035: Out of memory
[ 85.370948][ T1063] EXT4-fs (loop0): i_reserved_data_blocks=4
[ 85.375811][ T5339] ------------[ cut here ]------------
[ 85.378678][ T5339] WARNING: mm/page-writeback.c:2710 at __folio_mark_dirty+0x202/0xe10, CPU#0: syz.0.0/5339
[ 85.383292][ T5339] Modules linked in:
[ 85.385386][ T5339] CPU: 0 UID: 0 PID: 5339 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 85.389149][ T5339] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 85.393464][ T5339] RIP: 0010:__folio_mark_dirty+0x202/0xe10
[ 85.396095][ T5339] Code: 3c 20 00 74 08 48 89 df e8 fb ce 2a 00 4c 8b 33 4c 89 f6 48 83 e6 08 31 ff e8 2a 29 c3 ff 49 83 e6 08 75 20 e8 3f 24 c3 ff 90 <0f> 0b 90 eb 1a e8 34 24 c3 ff 48 8b 2c 24 e9 5d 07 00 00 e8 26 24
[ 85.404149][ T5339] RSP: 0000:ffffc9000deef810 EFLAGS: 00010093
[ 85.406740][ T5339] RAX: ffffffff81fde321 RBX: ffffea0000498080 RCX: ffff8880123224c0
[ 85.410125][ T5339] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 85.413308][ T5339] RBP: ffff888047052b38 R08: ffffea0000498087 R09: 1ffffd4000093010
[ 85.416430][ T5339] R10: dffffc0000000000 R11: fffff94000093011 R12: dffffc0000000000
[ 85.419498][ T5339] R13: ffff888047052b40 R14: 0000000000000000 R15: 0000000000000001
[ 85.422718][ T5339] FS: 000055556274a500(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000
[ 85.426606][ T5339] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 85.429572][ T5339] CR2: 0000200000000140 CR3: 0000000011633000 CR4: 0000000000352ef0
[ 85.433197][ T5339] Call Trace:
[ 85.434768][ T5339]
[ 85.436146][ T5339] ? do_raw_spin_unlock+0x4d/0x240
[ 85.438723][ T5339] block_dirty_folio+0x17a/0x1d0
[ 85.441017][ T5339] ext4_page_mkwrite+0xf07/0x1190
[ 85.443195][ T5339] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 85.445772][ T5339] ? __pfx_ext4_page_mkwrite+0x10/0x10
[ 85.448066][ T5339] do_page_mkwrite+0x14d/0x310
[ 85.450121][ T5339] do_wp_page+0x2676/0x5810
[ 85.452095][ T5339] ? ___pte_offset_map+0x29/0x240
[ 85.454488][ T5339] ? __pfx_do_wp_page+0x10/0x10
[ 85.456712][ T5339] ? do_raw_spin_lock+0x121/0x290
[ 85.459016][ T5339] ? handle_mm_fault+0x1411/0x32b0
[ 85.461357][ T5339] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 85.463913][ T5339] handle_mm_fault+0x14c5/0x32b0
[ 85.466154][ T5339] ? handle_mm_fault+0xdb/0x32b0
[ 85.468593][ T5339] ? __pfx_handle_mm_fault+0x10/0x10
[ 85.471416][ T5339] ? lock_vma_under_rcu+0x42c/0x4a0
[ 85.473956][ T5339] ? __pfx_do_futex+0x10/0x10
[ 85.476026][ T5339] do_user_addr_fault+0xa7c/0x1380
[ 85.478247][ T5339] ? rcu_is_watching+0x15/0xb0
[ 85.480665][ T5339] ? trace_page_fault_user+0x84/0x1c0
[ 85.482971][ T5339] exc_page_fault+0x71/0xd0
[ 85.484946][ T5339] asm_exc_page_fault+0x26/0x30
[ 85.487187][ T5339] RIP: 0033:0x7f4584c555f3
[ 85.489235][ T5339] Code: 8b 44 24 08 48 85 c0 74 17 48 8b 54 24 18 48 0f ca 48 89 54 24 18 48 83 f8 01 0f 85 7a 02 00 00 48 8b 44 24 10 48 8b 54 24 18 <48> 89 10 e9 d2 fd ff ff 48 8b 44 24 10 0f b7 10 48 8b 44 24 08 48
[ 85.497556][ T5339] RSP: 002b:00007ffdc2b12b30 EFLAGS: 00010246
[ 85.500073][ T5339] RAX: 0000200000000140 RBX: 0000000000000008 RCX: 0000000000000000
[ 85.503643][ T5339] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 000055556274a3c8
[ 85.507254][ T5339] RBP: 00007ffdc2b12c38 R08: 0000000000000000 R09: 0000000000000000
[ 85.510866][ T5339] R10: 0000000000000000 R11: 0000000000000001 R12: 00007f4584fe5fac
[ 85.514407][ T5339] R13: 00007f4584fe5fa0 R14: fffffffffffffffe R15: 00007ffdc2b12c80
[ 85.518220][ T5339]
[ 85.520037][ T5339] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 85.523605][ T5339] CPU: 0 UID: 0 PID: 5339 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 85.527780][ T5339] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 85.532140][ T5339] Call Trace:
[ 85.533654][ T5339]
[ 85.535319][ T5339] vpanic+0x1e0/0x670
[ 85.537552][ T5339] panic+0xb9/0xc0
[ 85.539634][ T5339] ? __pfx_panic+0x10/0x10
[ 85.542044][ T5339] __warn+0x317/0x4b0
[ 85.544143][ T5339] ? __folio_mark_dirty+0x202/0xe10
[ 85.546681][ T5339] ? __folio_mark_dirty+0x202/0xe10
[ 85.548978][ T5339] __report_bug+0x288/0x500
[ 85.551099][ T5339] ? __folio_mark_dirty+0x202/0xe10
[ 85.554509][ T5339] ? __pfx___report_bug+0x10/0x10
[ 85.557096][ T5339] ? __lock_acquire+0x6b6/0x2cf0
[ 85.559649][ T5339] ? do_raw_spin_unlock+0x4d/0x240
[ 85.562061][ T5339] ? __folio_mark_dirty+0x202/0xe10
[ 85.564649][ T5339] report_bug+0x16a/0x220
[ 85.566844][ T5339] ? __folio_mark_dirty+0x202/0xe10
[ 85.569398][ T5339] ? __folio_mark_dirty+0x204/0xe10
[ 85.571538][ T5339] handle_bug+0x98/0x200
[ 85.573393][ T5339] exc_invalid_op+0x1a/0x50
[ 85.575629][ T5339] asm_exc_invalid_op+0x1a/0x20
[ 85.578261][ T5339] RIP: 0010:__folio_mark_dirty+0x202/0xe10
[ 85.581675][ T5339] Code: 3c 20 00 74 08 48 89 df e8 fb ce 2a 00 4c 8b 33 4c 89 f6 48 83 e6 08 31 ff e8 2a 29 c3 ff 49 83 e6 08 75 20 e8 3f 24 c3 ff 90 <0f> 0b 90 eb 1a e8 34 24 c3 ff 48 8b 2c 24 e9 5d 07 00 00 e8 26 24
[ 85.591189][ T5339] RSP: 0000:ffffc9000deef810 EFLAGS: 00010093
[ 85.593969][ T5339] RAX: ffffffff81fde321 RBX: ffffea0000498080 RCX: ffff8880123224c0
[ 85.597310][ T5339] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 85.600702][ T5339] RBP: ffff888047052b38 R08: ffffea0000498087 R09: 1ffffd4000093010
[ 85.604228][ T5339] R10: dffffc0000000000 R11: fffff94000093011 R12: dffffc0000000000
[ 85.607955][ T5339] R13: ffff888047052b40 R14: 0000000000000000 R15: 0000000000000001
[ 85.611329][ T5339] ? __folio_mark_dirty+0x201/0xe10
[ 85.613736][ T5339] ? do_raw_spin_unlock+0x4d/0x240
[ 85.616068][ T5339] block_dirty_folio+0x17a/0x1d0
[ 85.618407][ T5339] ext4_page_mkwrite+0xf07/0x1190
[ 85.620756][ T5339] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 85.623340][ T5339] ? __pfx_ext4_page_mkwrite+0x10/0x10
[ 85.625795][ T5339] do_page_mkwrite+0x14d/0x310
[ 85.627875][ T5339] do_wp_page+0x2676/0x5810
[ 85.629982][ T5339] ? ___pte_offset_map+0x29/0x240
[ 85.632349][ T5339] ? __pfx_do_wp_page+0x10/0x10
[ 85.634614][ T5339] ? do_raw_spin_lock+0x121/0x290
[ 85.636847][ T5339] ? handle_mm_fault+0x1411/0x32b0
[ 85.639204][ T5339] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 85.641713][ T5339] handle_mm_fault+0x14c5/0x32b0
[ 85.643868][ T5339] ? handle_mm_fault+0xdb/0x32b0
[ 85.646046][ T5339] ? __pfx_handle_mm_fault+0x10/0x10
[ 85.648361][ T5339] ? lock_vma_under_rcu+0x42c/0x4a0
[ 85.650747][ T5339] ? __pfx_do_futex+0x10/0x10
[ 85.652872][ T5339] do_user_addr_fault+0xa7c/0x1380
[ 85.655105][ T5339] ? rcu_is_watching+0x15/0xb0
[ 85.657444][ T5339] ? trace_page_fault_user+0x84/0x1c0
[ 85.660298][ T5339] exc_page_fault+0x71/0xd0
[ 85.662929][ T5339] asm_exc_page_fault+0x26/0x30
[ 85.665708][ T5339] RIP: 0033:0x7f4584c555f3
[ 85.668171][ T5339] Code: 8b 44 24 08 48 85 c0 74 17 48 8b 54 24 18 48 0f ca 48 89 54 24 18 48 83 f8 01 0f 85 7a 02 00 00 48 8b 44 24 10 48 8b 54 24 18 <48> 89 10 e9 d2 fd ff ff 48 8b 44 24 10 0f b7 10 48 8b 44 24 08 48
[ 85.678590][ T5339] RSP: 002b:00007ffdc2b12b30 EFLAGS: 00010246
[ 85.682147][ T5339] RAX: 0000200000000140 RBX: 0000000000000008 RCX: 0000000000000000
[ 85.686374][ T5339] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 000055556274a3c8
[ 85.690347][ T5339] RBP: 00007ffdc2b12c38 R08: 0000000000000000 R09: 0000000000000000
[ 85.694352][ T5339] R10: 0000000000000000 R11: 0000000000000001 R12: 00007f4584fe5fac
[ 85.698495][ T5339] R13: 00007f4584fe5fa0 R14: fffffffffffffffe R15: 00007ffdc2b12c80
[ 85.702038][ T5339]
[ 85.703833][ T5339] Kernel Offset: disabled
[ 85.706062][ T5339] Rebooting in 86400 seconds..