program: r0 = socket(0x10, 0x3, 0x0) r1 = socket$nl_rdma(0x10, 0x3, 0x14) sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0xfffffffffffffe4d, &(0x7f0000000700)={&(0x7f0000000300)=ANY=[@ANYRESOCT=r0, @ANYRES16=0x0, @ANYRESOCT=r1], 0x38}, 0x1, 0x0, 0x0, 0x20000010}, 0x8000) r2 = socket$inet6(0xa, 0x80002, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x2, 0x0) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000180), 0xffffffffffffffff) r5 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl80211(&(0x7f0000000580), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r2, 0x8933, &(0x7f0000000540)={'wlan0\x00', 0x0}) sendmsg$NL80211_CMD_FRAME(r5, &(0x7f0000001380)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000005c0)=ANY=[@ANYRES8=r6, @ANYRESDEC=r2, @ANYBLOB="0ae17efc0d83c9f27d2d2202725b2b7387a6629c0137bbd8c669c16b7dffdfc5b4df805e15fcc2f874be26b11178717ea6a26798f9b0be342fc3971f4d9e833d2016da4bec42d05c7f194b5604823f98692ebe7fbca70b3c240931acc3f11556bba17367db65eb9e89705018ad3e3366d480a18dd54c00c6235bda583e3a955b19e573c5a9faa97032b5f5fbe0673cbabd2f69645f4c938eb3d70b2a783e291d7406758734334dd94b24bcb06551d765393811e655e7462c4547ec752b2a2d0717516d1a1f2c", @ANYBLOB="d50633008000009effffffffffff08021100e0ba69b92e5db7ddc5d52ab35dc50001"], 0x6f4}}, 0x0) sendmsg$NL80211_CMD_LEAVE_IBSS(r3, &(0x7f0000000440)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r4, @ANYBLOB="00042bbd70001edcdf252c00000008000300", @ANYRES32=r6, @ANYBLOB], 0x1c}, 0x1, 0x0, 0x0, 0x24000000}, 0x1) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.cpu/test\x00', 0x7dc) r7 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./cgroup.cpu/test/memory.limit_in_bytes\x00', 0x2, 0x20) write(r7, &(0x7f0000000380)='100000', 0x6) r8 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./cgroup.cpu/test/memory.oom_control\x00', 0x2, 0x0) write(r8, &(0x7f0000000200)='1', 0x1) r9 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./cgroup.cpu/test/cgroup.procs\x00', 0x8002, 0x82) write(r9, &(0x7f0000000280)='0', 0x1) syz_mount_image$vfat(&(0x7f0000000500), &(0x7f0000000480)='./file0\x00', 0x2004000, &(0x7f0000000040)=ANY=[@ANYRES64=0x0], 0xfe, 0x1227, &(0x7f00000024c0)="$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r10 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./file1\x00', 0x42, 0xc0) write$P9_RREADLINK(r10, &(0x7f0000000000)={0x10, 0x17, 0x2, {0x7, './file0'}}, 0xfffffdab) r11 = socket$packet(0x11, 0x3, 0x300) getsockname$packet(r11, 0x0, 0x0) perf_event_open(&(0x7f0000000740)={0x1, 0x80, 0xc5, 0xfe, 0x0, 0x7f, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1, 0x7fffffff}, 0x0, 0xfffffffffffffffd, 0x9, 0x7, 0x3, 0x6e2, 0x0, 0x0, 0x0, 0x0, 0x10}, 0xffffffffffffffff, 0x800000001, 0xffffffffffffffff, 0x9) write$sysctl(0xffffffffffffffff, &(0x7f00000000c0)='2\x00', 0x2) madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x17) [ 107.749035][ T4644] Bluetooth: hci0: command tx timeout [ 107.845453][ T5314] oom_control is deprecated and will be removed. Please report your usecase to linux-mm-@kvack.org if you depend on this functionality. [ 107.998995][ T5314] loop0: detected capacity change from 0 to 8192 [ 108.243513][ T13] kernel resource error, dev loop0, sector 95 op 0x1:(WRITE) flags 0x800000 phys_seg 1 prio class 2 [ 108.248521][ T13] Buffer I/O error on dev loop0, logical block 95, lost async page write [ 108.288073][ T13] kernel resource error, dev loop0, sector 167 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 2 [ 108.310640][ T13] kernel resource error, dev loop0, sector 127 op 0x1:(WRITE) flags 0x800000 phys_seg 1 prio class 2 [ 108.315597][ T13] Buffer I/O error on dev loop0, logical block 127, lost async page write [ 108.345674][ T185] kernel resource error, dev loop0, sector 63 op 0x1:(WRITE) flags 0x800000 phys_seg 1 prio class 2 [ 108.354008][ T185] Buffer I/O error on dev loop0, logical block 63, lost async page write [ 108.401728][ T185] kernel resource error, dev loop0, sector 95 op 0x1:(WRITE) flags 0x800000 phys_seg 1 prio class 2 [ 108.410565][ T185] Buffer I/O error on dev loop0, logical block 95, lost async page write [ 108.458229][ T185] kernel resource error, dev loop0, sector 127 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 108.464258][ T13] FAT-fs (loop0): unable to read inode block for updating (i_pos 2033) [ 108.592127][ T185] kernel resource error, dev loop0, sector 63 op 0x1:(WRITE) flags 0x800000 phys_seg 1 prio class 2 [ 108.602950][ T185] Buffer I/O error on dev loop0, logical block 63, lost async page write [ 108.663828][ T185] kernel resource error, dev loop0, sector 95 op 0x1:(WRITE) flags 0x800000 phys_seg 1 prio class 2 [ 108.676226][ T185] Buffer I/O error on dev loop0, logical block 95, lost async page write [ 108.698760][ T5314] ------------[ cut here ]------------ [ 108.701671][ T5314] !buffer_uptodate(bh) [ 108.701682][ T5314] WARNING: fs/buffer.c:991 at mark_buffer_dirty+0x299/0x410, CPU#0: syz.0.0/5314 [ 108.707374][ T5314] Modules linked in: [ 108.709435][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 108.713104][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 108.717445][ T5314] RIP: 0010:mark_buffer_dirty+0x299/0x410 [ 108.719838][ T5314] Code: 4c 89 f7 e8 99 89 d8 ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 74 52 fb ff e8 7f 21 69 ff eb 8c e8 78 21 69 ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 6a 21 69 ff 90 0f 0b 90 e9 cf fd ff ff [ 108.728690][ T5314] RSP: 0018:ffffc9000e0c7358 EFLAGS: 00010246 [ 108.731607][ T5314] RAX: ffffffff825df458 RBX: ffff8880376f2c40 RCX: 0000000000100000 [ 108.734961][ T5314] RDX: ffffc9000e9fa000 RSI: 00000000000fffff RDI: 0000000000100000 [ 108.738492][ T5314] RBP: dffffc0000000001 R08: ffff8880376f2c47 R09: 1ffff11006ede588 [ 108.741883][ T5314] R10: dffffc0000000000 R11: ffffed1006ede589 R12: dffffc0000000000 [ 108.745391][ T5314] R13: 1ffff92001c18ea6 R14: ffffc9000e0c7530 R15: ffff888052870788 [ 108.748897][ T5314] FS: 00007f2aa38786c0(0000) GS:ffff88808c526000(0000) knlGS:0000000000000000 [ 108.752688][ T5314] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.755897][ T5314] CR2: 000055c60ad66168 CR3: 0000000042f56000 CR4: 0000000000352ef0 [ 108.759398][ T5314] Call Trace: [ 108.760963][ T5314] [ 108.762396][ T5314] mmb_mark_buffer_dirty+0x2c/0x1f0 [ 108.764751][ T5314] fat12_ent_put+0x1b7/0x2f0 [ 108.766789][ T5314] fat_alloc_clusters+0x4e7/0xe30 [ 108.769198][ T5314] ? __pfx_fat_alloc_clusters+0x10/0x10 [ 108.771784][ T5314] ? clean_bdev_aliases+0x62e/0x750 [ 108.774054][ T5314] ? fat_bmap+0x487/0x5a0 [ 108.775963][ T5314] fat_get_block+0x421/0xae0 [ 108.777968][ T5314] ? __pfx_fat_get_block+0x10/0x10 [ 108.780039][ T5314] ? do_raw_spin_unlock+0x4d/0x200 [ 108.782238][ T5314] ? _raw_spin_unlock+0x28/0x50 [ 108.784437][ T5314] ? create_empty_buffers+0x460/0x520 [ 108.786771][ T5314] __block_write_begin_int+0x6c2/0x1900 [ 108.789307][ T5314] ? __pfx_fat_get_block+0x10/0x10 [ 108.791363][ T5314] ? __pfx___block_write_begin_int+0x10/0x10 [ 108.794188][ T5314] cont_write_begin+0x71b/0xac0 [ 108.796680][ T5314] ? lockdep_hardirqs_on+0x7b/0x110 [ 108.799111][ T5314] ? __pfx_cont_write_begin+0x10/0x10 [ 108.801343][ T5314] ? fault_in_safe_writeable+0x211/0x240 [ 108.803947][ T5314] ? fault_in_readable+0x8e/0x130 [ 108.806141][ T5314] fat_write_begin+0x7a/0x150 [ 108.808414][ T5314] ? __pfx_fat_get_block+0x10/0x10 [ 108.810694][ T5314] generic_perform_write+0x2d5/0x8f0 [ 108.812978][ T5314] ? __pfx_generic_perform_write+0x10/0x10 [ 108.815668][ T5314] ? file_update_time_flags+0x3ab/0x440 [ 108.818006][ T5314] ? __generic_file_write_iter+0xf9/0x230 [ 108.820501][ T5314] ? generic_file_write_iter+0x9a/0x330 [ 108.822863][ T5314] generic_file_write_iter+0xae/0x330 [ 108.825161][ T5314] vfs_write+0x612/0xba0 [ 108.828360][ T5314] ? __pfx_vfs_write+0x10/0x10 [ 108.830505][ T5314] ? __fget_files+0x2a/0x420 [ 108.832446][ T5314] ksys_write+0x150/0x270 [ 108.834362][ T5314] ? __pfx_ksys_write+0x10/0x10 [ 108.836549][ T5314] do_syscall_64+0x166/0x520 [ 108.838655][ T5314] ? trace_irq_disable+0x3b/0x140 [ 108.840749][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.843471][ T5314] ? clear_bhb_loop+0x70/0xc0 [ 108.845731][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.849020][ T5314] RIP: 0033:0x7f2aa299e0d9 [ 108.850984][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 108.859327][ T5314] RSP: 002b:00007f2aa3877fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 108.862866][ T5314] RAX: ffffffffffffffda RBX: 00007f2aa2c25fa0 RCX: 00007f2aa299e0d9 [ 108.867091][ T5314] RDX: 00000000fffffdab RSI: 0000200000000000 RDI: 000000000000000d [ 108.870604][ T5314] RBP: 00007f2aa2a35024 R08: 0000000000000000 R09: 0000000000000000 [ 108.874076][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 108.877606][ T5314] R13: 00007f2aa2c26038 R14: 00007f2aa2c25fa0 R15: 00007ffe00472218 [ 108.881016][ T5314] [ 108.882492][ T5314] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 108.885649][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 108.889479][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 108.893805][ T5314] Call Trace: [ 108.895253][ T5314] [ 108.896532][ T5314] vpanic+0x56d/0xa60 [ 108.898285][ T5314] ? __pfx__printk+0x10/0x10 [ 108.900181][ T5314] ? __pfx_vpanic+0x10/0x10 [ 108.902180][ T5314] ? is_bpf_text_address+0x292/0x2b0 [ 108.904589][ T5314] ? is_bpf_text_address+0x26/0x2b0 [ 108.906930][ T5314] panic+0xc5/0xd0 [ 108.908574][ T5314] ? __pfx_panic+0x10/0x10 [ 108.910603][ T5314] __warn+0x315/0x4c0 [ 108.912410][ T5314] ? mark_buffer_dirty+0x299/0x410 [ 108.914650][ T5314] ? mark_buffer_dirty+0x299/0x410 [ 108.916782][ T5314] __report_bug+0x276/0x570 [ 108.918668][ T5314] ? __submit_bio+0x7e/0x340 [ 108.920608][ T5314] ? mark_buffer_dirty+0x299/0x410 [ 108.922764][ T5314] ? __pfx___report_bug+0x10/0x10 [ 108.924967][ T5314] ? __pfx_submit_bio_noacct_nocheck+0x10/0x10 [ 108.927636][ T5314] ? __lock_acquire+0x683/0x2cf0 [ 108.929888][ T5314] ? mark_buffer_dirty+0x299/0x410 [ 108.932135][ T5314] report_bug+0x16b/0x220 [ 108.934053][ T5314] ? mark_buffer_dirty+0x299/0x410 [ 108.936238][ T5314] ? mark_buffer_dirty+0x29b/0x410 [ 108.938491][ T5314] handle_bug+0x9c/0x200 [ 108.940397][ T5314] exc_invalid_op+0x1a/0x50 [ 108.942399][ T5314] asm_exc_invalid_op+0x1a/0x20 [ 108.944581][ T5314] RIP: 0010:mark_buffer_dirty+0x299/0x410 [ 108.947021][ T5314] Code: 4c 89 f7 e8 99 89 d8 ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 74 52 fb ff e8 7f 21 69 ff eb 8c e8 78 21 69 ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 6a 21 69 ff 90 0f 0b 90 e9 cf fd ff ff [ 108.955331][ T5314] RSP: 0018:ffffc9000e0c7358 EFLAGS: 00010246 [ 108.957957][ T5314] RAX: ffffffff825df458 RBX: ffff8880376f2c40 RCX: 0000000000100000 [ 108.961404][ T5314] RDX: ffffc9000e9fa000 RSI: 00000000000fffff RDI: 0000000000100000 [ 108.964743][ T5314] RBP: dffffc0000000001 R08: ffff8880376f2c47 R09: 1ffff11006ede588 [ 108.968184][ T5314] R10: dffffc0000000000 R11: ffffed1006ede589 R12: dffffc0000000000 [ 108.971669][ T5314] R13: 1ffff92001c18ea6 R14: ffffc9000e0c7530 R15: ffff888052870788 [ 108.975064][ T5314] ? mark_buffer_dirty+0x298/0x410 [ 108.977316][ T5314] ? mark_buffer_dirty+0x298/0x410 [ 108.979665][ T5314] mmb_mark_buffer_dirty+0x2c/0x1f0 [ 108.982010][ T5314] fat12_ent_put+0x1b7/0x2f0 [ 108.984107][ T5314] fat_alloc_clusters+0x4e7/0xe30 [ 108.986276][ T5314] ? __pfx_fat_alloc_clusters+0x10/0x10 [ 108.988717][ T5314] ? clean_bdev_aliases+0x62e/0x750 [ 108.990875][ T5314] ? fat_bmap+0x487/0x5a0 [ 108.992709][ T5314] fat_get_block+0x421/0xae0 [ 108.994727][ T5314] ? __pfx_fat_get_block+0x10/0x10 [ 108.996886][ T5314] ? do_raw_spin_unlock+0x4d/0x200 [ 108.999123][ T5314] ? _raw_spin_unlock+0x28/0x50 [ 109.001294][ T5314] ? create_empty_buffers+0x460/0x520 [ 109.003736][ T5314] __block_write_begin_int+0x6c2/0x1900 [ 109.006179][ T5314] ? __pfx_fat_get_block+0x10/0x10 [ 109.008337][ T5314] ? __pfx___block_write_begin_int+0x10/0x10 [ 109.010952][ T5314] cont_write_begin+0x71b/0xac0 [ 109.012907][ T5314] ? lockdep_hardirqs_on+0x7b/0x110 [ 109.015235][ T5314] ? __pfx_cont_write_begin+0x10/0x10 [ 109.017601][ T5314] ? fault_in_safe_writeable+0x211/0x240 [ 109.020023][ T5314] ? fault_in_readable+0x8e/0x130 [ 109.022130][ T5314] fat_write_begin+0x7a/0x150 [ 109.024106][ T5314] ? __pfx_fat_get_block+0x10/0x10 [ 109.026208][ T5314] generic_perform_write+0x2d5/0x8f0 [ 109.028364][ T5314] ? __pfx_generic_perform_write+0x10/0x10 [ 109.030765][ T5314] ? file_update_time_flags+0x3ab/0x440 [ 109.033162][ T5314] ? __generic_file_write_iter+0xf9/0x230 [ 109.035602][ T5314] ? generic_file_write_iter+0x9a/0x330 [ 109.037841][ T5314] generic_file_write_iter+0xae/0x330 [ 109.040105][ T5314] vfs_write+0x612/0xba0 [ 109.041809][ T5314] ? __pfx_vfs_write+0x10/0x10 [ 109.043980][ T5314] ? __fget_files+0x2a/0x420 [ 109.045977][ T5314] ksys_write+0x150/0x270 [ 109.047877][ T5314] ? __pfx_ksys_write+0x10/0x10 [ 109.049978][ T5314] do_syscall_64+0x166/0x520 [ 109.052074][ T5314] ? trace_irq_disable+0x3b/0x140 [ 109.054219][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 109.056640][ T5314] ? clear_bhb_loop+0x70/0xc0 [ 109.058971][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 109.062212][ T5314] RIP: 0033:0x7f2aa299e0d9 [ 109.064580][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 109.073101][ T5314] RSP: 002b:00007f2aa3877fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 109.076698][ T5314] RAX: ffffffffffffffda RBX: 00007f2aa2c25fa0 RCX: 00007f2aa299e0d9 [ 109.079952][ T5314] RDX: 00000000fffffdab RSI: 0000200000000000 RDI: 000000000000000d [ 109.083251][ T5314] RBP: 00007f2aa2a35024 R08: 0000000000000000 R09: 0000000000000000 [ 109.086507][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 109.089776][ T5314] R13: 00007f2aa2c26038 R14: 00007f2aa2c25fa0 R15: 00007ffe00472218 [ 109.092951][ T5314] [ 109.094606][ T5314] Kernel Offset: disabled [ 109.096310][ T5314] Rebooting in 86400 seconds..