[ 18.593622][ T3635] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.598168][ T3635] eql: remember to turn off Van-Jacobson compression on your slave devices [ 18.644202][ T260] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 18.647697][ T3547] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.157' (ED25519) to the list of known hosts. executing program syzkaller login: [ 41.790354][ T3959] loop0: detected capacity change from 0 to 8192 [ 41.878035][ T3959] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 41.880258][ T3959] REISERFS (device loop0): using ordered data mode [ 41.881608][ T3959] reiserfs: using flush barriers [ 41.883625][ T3959] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 41.887835][ T3959] REISERFS (device loop0): checking transaction log (loop0) [ 41.891068][ T3959] REISERFS (device loop0): Using tea hash to sort names [ 41.893502][ T3959] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 41.896822][ T3959] [ 41.897346][ T3959] ====================================================== [ 41.898934][ T3959] WARNING: possible circular locking dependency detected [ 41.900584][ T3959] 5.15.156-syzkaller #0 Not tainted [ 41.901703][ T3959] ------------------------------------------------------ [ 41.903146][ T3959] syz-executor399/3959 is trying to acquire lock: [ 41.904420][ T3959] ffff80001ab3a0f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x2e8/0xe3c [ 41.906466][ T3959] [ 41.906466][ T3959] but task is already holding lock: [ 41.908097][ T3959] ffff0000c886c460 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write_file+0x64/0x1e8 [ 41.910133][ T3959] [ 41.910133][ T3959] which lock already depends on the new lock. [ 41.910133][ T3959] [ 41.912371][ T3959] [ 41.912371][ T3959] the existing dependency chain (in reverse order) is: [ 41.914359][ T3959] [ 41.914359][ T3959] -> #2 (sb_writers#8){.+.+}-{0:0}: [ 41.916175][ T3959] sb_start_write+0xf0/0x3ac [ 41.917379][ T3959] mnt_want_write_file+0x64/0x1e8 [ 41.918583][ T3959] reiserfs_ioctl+0x188/0x4b8 [ 41.919760][ T3959] __arm64_sys_ioctl+0x14c/0x1c8 [ 41.921006][ T3959] invoke_syscall+0x98/0x2b8 [ 41.922162][ T3959] el0_svc_common+0x138/0x258 [ 41.923346][ T3959] do_el0_svc+0x58/0x14c [ 41.924428][ T3959] el0_svc+0x7c/0x1f0 [ 41.925395][ T3959] el0t_64_sync_handler+0x84/0xe4 [ 41.926648][ T3959] el0t_64_sync+0x1a0/0x1a4 [ 41.927668][ T3959] [ 41.927668][ T3959] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 41.929320][ T3959] __mutex_lock_common+0x194/0x2154 [ 41.930549][ T3959] mutex_lock_nested+0xa4/0xf8 [ 41.931617][ T3959] reiserfs_write_lock_nested+0x68/0xd8 [ 41.932970][ T3959] do_journal_begin_r+0x2f4/0xe3c [ 41.934250][ T3959] journal_begin+0x110/0x2f4 [ 41.935397][ T3959] reiserfs_fill_super+0x13c0/0x1e8c [ 41.936649][ T3959] mount_bdev+0x274/0x370 [ 41.937688][ T3959] get_super_block+0x44/0x58 [ 41.938779][ T3959] legacy_get_tree+0xd4/0x16c [ 41.939966][ T3959] vfs_get_tree+0x90/0x274 [ 41.941100][ T3959] do_new_mount+0x278/0x8fc [ 41.942190][ T3959] path_mount+0x594/0x101c [ 41.943216][ T3959] __arm64_sys_mount+0x510/0x5e0 [ 41.944376][ T3959] invoke_syscall+0x98/0x2b8 [ 41.945518][ T3959] el0_svc_common+0x138/0x258 [ 41.946649][ T3959] do_el0_svc+0x58/0x14c [ 41.947723][ T3959] el0_svc+0x7c/0x1f0 [ 41.948867][ T3959] el0t_64_sync_handler+0x84/0xe4 [ 41.950011][ T3959] el0t_64_sync+0x1a0/0x1a4 [ 41.951088][ T3959] [ 41.951088][ T3959] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 41.952744][ T3959] __lock_acquire+0x32d4/0x7638 [ 41.953928][ T3959] lock_acquire+0x240/0x77c [ 41.955036][ T3959] __mutex_lock_common+0x194/0x2154 [ 41.956265][ T3959] mutex_lock_nested+0xa4/0xf8 [ 41.957436][ T3959] do_journal_begin_r+0x2e8/0xe3c [ 41.958680][ T3959] journal_begin+0x110/0x2f4 [ 41.959891][ T3959] reiserfs_dirty_inode+0x104/0x204 [ 41.961081][ T3959] __mark_inode_dirty+0x2b0/0x10f4 [ 41.962353][ T3959] reiserfs_ioctl+0x3c0/0x4b8 [ 41.963454][ T3959] __arm64_sys_ioctl+0x14c/0x1c8 [ 41.964632][ T3959] invoke_syscall+0x98/0x2b8 [ 41.965795][ T3959] el0_svc_common+0x138/0x258 [ 41.967014][ T3959] do_el0_svc+0x58/0x14c [ 41.967988][ T3959] el0_svc+0x7c/0x1f0 [ 41.969020][ T3959] el0t_64_sync_handler+0x84/0xe4 [ 41.970273][ T3959] el0t_64_sync+0x1a0/0x1a4 [ 41.971406][ T3959] [ 41.971406][ T3959] other info that might help us debug this: [ 41.971406][ T3959] [ 41.973657][ T3959] Chain exists of: [ 41.973657][ T3959] &journal->j_mutex --> &sbi->lock --> sb_writers#8 [ 41.973657][ T3959] [ 41.976542][ T3959] Possible unsafe locking scenario: [ 41.976542][ T3959] [ 41.978224][ T3959] CPU0 CPU1 [ 41.979362][ T3959] ---- ---- [ 41.980551][ T3959] lock(sb_writers#8); [ 41.981444][ T3959] lock(&sbi->lock); [ 41.982916][ T3959] lock(sb_writers#8); [ 41.984280][ T3959] lock(&journal->j_mutex); [ 41.985372][ T3959] [ 41.985372][ T3959] *** DEADLOCK *** [ 41.985372][ T3959] [ 41.987206][ T3959] 1 lock held by syz-executor399/3959: [ 41.988511][ T3959] #0: ffff0000c886c460 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write_file+0x64/0x1e8 [ 41.990709][ T3959] [ 41.990709][ T3959] stack backtrace: [ 41.992016][ T3959] CPU: 0 PID: 3959 Comm: syz-executor399 Not tainted 5.15.156-syzkaller #0 [ 41.993905][ T3959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 41.996310][ T3959] Call trace: [ 41.997072][ T3959] dump_backtrace+0x0/0x530 [ 41.998088][ T3959] show_stack+0x2c/0x3c [ 41.999013][ T3959] dump_stack_lvl+0x108/0x170 [ 42.000054][ T3959] dump_stack+0x1c/0x58 [ 42.001047][ T3959] print_circular_bug+0x150/0x1b8 [ 42.002240][ T3959] check_noncircular+0x2cc/0x378 [ 42.003287][ T3959] __lock_acquire+0x32d4/0x7638 [ 42.004233][ T3959] lock_acquire+0x240/0x77c [ 42.005246][ T3959] __mutex_lock_common+0x194/0x2154 [ 42.006365][ T3959] mutex_lock_nested+0xa4/0xf8 [ 42.007403][ T3959] do_journal_begin_r+0x2e8/0xe3c [ 42.008558][ T3959] journal_begin+0x110/0x2f4 [ 42.009710][ T3959] reiserfs_dirty_inode+0x104/0x204 [ 42.010919][ T3959] __mark_inode_dirty+0x2b0/0x10f4 [ 42.012103][ T3959] reiserfs_ioctl+0x3c0/0x4b8 [ 42.013180][ T3959] __arm64_sys_ioctl+0x14c/0x1c8 [ 42.014387][ T3959] invoke_syscall+0x98/0x2b8 [ 42.015439][ T3959] el0_svc_common+0x138/0x258 [ 42.016452][ T3959] do_el0_svc+0x58/0x14c [ 42.017461][ T3959] el0_svc+0x7c/0x1f0 [ 42.018390][ T3959] el0t_64_sync_handler+0x84/0xe4 [ 42.019497][ T3959] el0t_64_sync+0x1a0/0x1a4