Warning: Permanently added '10.128.1.164' (ED25519) to the list of known hosts. executing program syzkaller login: [ 40.948532][ T4021] loop0: detected capacity change from 0 to 32768 [ 41.002329][ T4021] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 41.004937][ T4021] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 41.033995][ T4021] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 41.037992][ T7] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 41.040040][ T7] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 41.071900][ T7] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 31ms [ 41.074461][ T7] gfs2: fsid=syz:syz.0: jid=0: Done [ 41.076251][ T4021] gfs2: fsid=syz:syz.0: first mount done, others may mount executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.466002][ T136] ------------[ cut here ]------------ [ 71.467536][ T136] WARNING: CPU: 1 PID: 136 at include/linux/backing-dev.h:289 __set_page_dirty+0x938/0xc74 [ 71.470267][ T136] Modules linked in: [ 71.471343][ T136] CPU: 1 PID: 136 Comm: kworker/u4:1 Not tainted 5.15.181-syzkaller #0 [ 71.473523][ T136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.476189][ T136] Workqueue: writeback wb_workfn (flush-7:0) [ 71.477845][ T136] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 71.479970][ T136] pc : __set_page_dirty+0x938/0xc74 [ 71.481400][ T136] lr : __set_page_dirty+0x938/0xc74 [ 71.482796][ T136] sp : ffff80001bd76fc0 [ 71.483869][ T136] x29: ffff80001bd76fd0 x28: ffff0000cade4000 x27: 0000000000000000 [ 71.486129][ T136] x26: dfff800000000000 x25: 1fffe00018a5db51 x24: 0000000000000000 [ 71.488276][ T136] x23: ffff0000c52eda88 x22: 0000000000000000 x21: 0000000000000001 [ 71.490478][ T136] x20: ffff0000ca6d0d30 x19: fffffc0003173800 x18: 1fffe0003685b58e [ 71.492668][ T136] x17: ffff800016ce0000 x16: ffff8000082bdde4 x15: ffff8000167c04c0 [ 71.494879][ T136] x14: ffff0000c2660a00 x13: ffff0000c2660ac8 x12: 0000000000ff0100 [ 71.497010][ T136] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000869d9a8 [ 71.499211][ T136] x8 : ffff0000c2660000 x7 : 0000000000000000 x6 : 0000000000000000 [ 71.501259][ T136] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff80000899cc0c [ 71.503501][ T136] x2 : ffff0000cbede060 x1 : 0000000000000000 x0 : 0000000000000000 [ 71.505617][ T136] Call trace: [ 71.506487][ T136] __set_page_dirty+0x938/0xc74 [ 71.507798][ T136] mark_buffer_dirty+0x27c/0x52c [ 71.509175][ T136] gfs2_unpin+0x12c/0xc28 [ 71.510312][ T136] buf_lo_after_commit+0x140/0x188 [ 71.511667][ T136] gfs2_log_flush+0x13cc/0x2078 [ 71.512968][ T136] gfs2_write_inode+0x23c/0x3f4 [ 71.514267][ T136] __writeback_single_inode+0x560/0x11f0 [ 71.515806][ T136] writeback_sb_inodes+0x7fc/0x1378 [ 71.517226][ T136] __writeback_inodes_wb+0x110/0x394 [ 71.518647][ T136] wb_writeback+0x3ec/0xe44 [ 71.519866][ T136] wb_workfn+0xa18/0xdd8 [ 71.521008][ T136] process_one_work+0x79c/0x1140 [ 71.522336][ T136] worker_thread+0x8f4/0x101c [ 71.523616][ T136] kthread+0x374/0x454 [ 71.524752][ T136] ret_from_fork+0x10/0x20 [ 71.525938][ T136] irq event stamp: 238504 [ 71.527134][ T136] hardirqs last enabled at (238503): [] lock_page_memcg+0x110/0x234 [ 71.529827][ T136] hardirqs last disabled at (238504): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 71.532546][ T136] softirqs last enabled at (229264): [] handle_softirqs+0xa4c/0xbf0 [ 71.535162][ T136] softirqs last disabled at (229253): [] __irq_exit_rcu+0x240/0x440 [ 71.537716][ T136] ---[ end trace d8ca9970210b8562 ]--- [ 71.539742][ T136] ------------[ cut here ]------------ executing program [ 71.541217][ T136] WARNING: CPU: 1 PID: 136 at include/linux/backing-dev.h:289 __test_set_page_writeback+0xa34/0xc34 [ 71.543988][ T136] Modules linked in: [ 71.544993][ T136] CPU: 1 PID: 136 Comm: kworker/u4:1 Tainted: G W 5.15.181-syzkaller #0 [ 71.547574][ T136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.550225][ T136] Workqueue: writeback wb_workfn (flush-7:0) [ 71.551852][ T136] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 71.553946][ T136] pc : __test_set_page_writeback+0xa34/0xc34 [ 71.555585][ T136] lr : __test_set_page_writeback+0xa34/0xc34 [ 71.557164][ T136] sp : ffff80001bd76c00 [ 71.558251][ T136] x29: ffff80001bd76ce0 x28: 0000000000000000 x27: 0000000000000000 [ 71.560421][ T136] x26: ffff0000c52ed8e0 x25: dfff800000000000 x24: 0000000000000000 [ 71.562624][ T136] x23: ffff0000cb0442a0 x22: fffffc0003528cc8 x21: ffff80001bd76c60 [ 71.564804][ T136] x20: 1fffff80006a5199 x19: fffffc0003528cc0 x18: 0000000000000000 [ 71.566932][ T136] x17: ffff800016ce0000 x16: ffff8000082bdde4 x15: ffff8000167c04c0 [ 71.569058][ T136] x14: ffff0000c2660a00 x13: ffff0000c2660aa0 x12: 0000000000ff0100 [ 71.571174][ T136] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff8000086a051c [ 71.573292][ T136] x8 : ffff0000c2660000 x7 : 0000000000000000 x6 : 0000000000000000 [ 71.575410][ T136] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff80000869ff98 [ 71.577678][ T136] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 71.579932][ T136] Call trace: [ 71.580849][ T136] __test_set_page_writeback+0xa34/0xc34 [ 71.582402][ T136] gfs2_aspace_writepage+0x548/0x710 [ 71.583825][ T136] __writepage+0x70/0x120 [ 71.584956][ T136] write_cache_pages+0x7c8/0xde4 [ 71.586272][ T136] do_writepages+0x3cc/0x578 [ 71.587449][ T136] filemap_fdatawrite_wbc+0x1d4/0x234 [ 71.588903][ T136] filemap_fdatawrite+0xb0/0xf4 [ 71.590243][ T136] gfs2_write_inode+0x2ec/0x3f4 [ 71.591620][ T136] __writeback_single_inode+0x560/0x11f0 [ 71.593110][ T136] writeback_sb_inodes+0x7fc/0x1378 [ 71.594532][ T136] __writeback_inodes_wb+0x110/0x394 [ 71.596015][ T136] wb_writeback+0x3ec/0xe44 [ 71.597229][ T136] wb_workfn+0xa18/0xdd8 [ 71.598406][ T136] process_one_work+0x79c/0x1140 [ 71.599692][ T136] worker_thread+0x8f4/0x101c [ 71.600997][ T136] kthread+0x374/0x454 [ 71.602154][ T136] ret_from_fork+0x10/0x20 [ 71.603350][ T136] irq event stamp: 238556 [ 71.604622][ T136] hardirqs last enabled at (238555): [] lock_page_memcg+0x110/0x234 [ 71.607272][ T136] hardirqs last disabled at (238556): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 71.610035][ T136] softirqs last enabled at (238532): [] handle_softirqs+0xa4c/0xbf0 [ 71.612602][ T136] softirqs last disabled at (238507): [] __irq_exit_rcu+0x240/0x440 [ 71.615217][ T136] ---[ end trace d8ca9970210b8563 ]--- [ 71.618321][ C1] ------------[ cut here ]------------ [ 71.620101][ C1] WARNING: CPU: 1 PID: 20 at include/linux/backing-dev.h:289 test_clear_page_writeback+0x8d0/0xacc [ 71.622949][ C1] Modules linked in: [ 71.623985][ C1] CPU: 1 PID: 20 Comm: ksoftirqd/1 Tainted: G W 5.15.181-syzkaller #0 [ 71.626570][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.629304][ C1] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 71.631401][ C1] pc : test_clear_page_writeback+0x8d0/0xacc [ 71.633071][ C1] lr : test_clear_page_writeback+0x8d0/0xacc [ 71.634647][ C1] sp : ffff80001b3779a0 [ 71.635745][ C1] x29: ffff80001b3779b0 x28: ffff0000cbede000 x27: fffffc0003528c88 [ 71.637870][ C1] x26: dfff800000000000 x25: 05ffc000000020b2 x24: 0000000000000000 [ 71.640028][ C1] x23: ffff0000c52ed8e0 x22: 0000000000000001 x21: 0000000000000001 [ 71.642171][ C1] x20: ffff0000cb0442a0 x19: fffffc0003528cc0 x18: 0000000000000001 [ 71.644307][ C1] x17: 0000000000000000 x16: ffff8000082bdde4 x15: 0000000000000002 [ 71.646512][ C1] x14: 0000000000ff0100 x13: 1ffff0000282a06b x12: 0000000000ff0100 [ 71.648681][ C1] x11: 0000000000000101 x10: 0000000000000000 x9 : ffff80000869f8ec [ 71.650871][ C1] x8 : ffff0000c0a78000 x7 : 0000000000000000 x6 : 0000000000000000 [ 71.653050][ C1] x5 : 0000000000000080 x4 : 0000000000000008 x3 : 0000000000000000 [ 71.655195][ C1] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 71.657350][ C1] Call trace: [ 71.658252][ C1] test_clear_page_writeback+0x8d0/0xacc [ 71.659840][ C1] end_page_writeback+0x174/0x488 [ 71.661170][ C1] end_buffer_async_write+0x340/0x56c [ 71.662674][ C1] end_bio_bh_io_sync+0xb0/0x1b4 [ 71.664037][ C1] bio_endio+0x744/0x788 [ 71.665210][ C1] blk_update_request+0x7a4/0x1100 [ 71.666642][ C1] blk_mq_end_request+0x54/0x88 [ 71.667884][ C1] lo_complete_rq+0x1ec/0x250 [ 71.669152][ C1] blk_done_softirq+0x11c/0x168 [ 71.670437][ C1] handle_softirqs+0x344/0xbf0 [ 71.671764][ C1] run_ksoftirqd+0x7c/0x2a0 [ 71.672947][ C1] smpboot_thread_fn+0x4b0/0x920 [ 71.674260][ C1] kthread+0x374/0x454 [ 71.675383][ C1] ret_from_fork+0x10/0x20 [ 71.676548][ C1] irq event stamp: 264027 [ 71.677631][ C1] hardirqs last enabled at (264026): [] lock_page_memcg+0x110/0x234 [ 71.680213][ C1] hardirqs last disabled at (264027): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 71.682964][ C1] softirqs last enabled at (264016): [] handle_softirqs+0xa4c/0xbf0 [ 71.685512][ C1] softirqs last disabled at (264021): [] run_ksoftirqd+0x7c/0x2a0 [ 71.687994][ C1] ---[ end trace d8ca9970210b8564 ]--- executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 74.744903][ T1534] cfg80211: failed to load regulatory.db executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program