[ 15.258470][ T3892] 8021q: adding VLAN 0 to HW filter on device bond0 [ 15.268305][ T3892] eql: remember to turn off Van-Jacobson compression on your slave devices [ 15.310161][ T11] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 15.313018][ T3801] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. executing program executing program executing program executing program syzkaller login: [ 34.770385][ T4223] loop5: detected capacity change from 0 to 512 [ 34.772171][ T4224] loop1: detected capacity change from 0 to 512 [ 34.773792][ T4225] loop4: detected capacity change from 0 to 512 executing program executing program [ 34.787524][ T4223] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.789758][ T4225] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.792422][ T4223] EXT4-fs (loop5): orphan cleanup on readonly fs [ 34.793996][ T4224] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.799392][ T4225] EXT4-fs (loop4): orphan cleanup on readonly fs [ 34.799438][ T4226] loop0: detected capacity change from 0 to 512 [ 34.802719][ T4224] EXT4-fs (loop1): orphan cleanup on readonly fs [ 34.805973][ T4229] loop3: detected capacity change from 0 to 512 [ 34.816927][ T4223] Quota error (device loop5): do_check_range: Getting block 196613 out of range 1-5 [ 34.817395][ T4227] loop2: detected capacity change from 0 to 512 [ 34.819484][ T4225] Quota error (device loop4): do_check_range: Getting block 196613 out of range 1-5 [ 34.823890][ T4225] Quota error (device loop4): qtree_read_dquot: Can't read quota structure for id 0 [ 34.826234][ T4223] Quota error (device loop5): qtree_read_dquot: Can't read quota structure for id 0 [ 34.828916][ T4224] Quota error (device loop1): do_check_range: Getting block 196613 out of range 1-5 [ 34.832394][ T4224] Quota error (device loop1): qtree_read_dquot: Can't read quota structure for id 0 [ 34.837460][ T4225] EXT4-fs (loop4): 1 truncate cleaned up [ 34.839938][ T4229] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.840471][ T4226] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.842146][ T4223] EXT4-fs (loop5): 1 truncate cleaned up [ 34.845164][ T4229] EXT4-fs (loop3): orphan cleanup on readonly fs [ 34.849234][ T4227] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.852078][ T4226] EXT4-fs (loop0): orphan cleanup on readonly fs [ 34.854068][ T4224] EXT4-fs (loop1): 1 truncate cleaned up [ 34.859613][ T4227] EXT4-fs (loop2): orphan cleanup on readonly fs [ 34.863955][ T4229] Quota error (device loop3): do_check_range: Getting block 196613 out of range 1-5 [ 34.867629][ T4226] Quota error (device loop0): do_check_range: Getting block 196613 out of range 1-5 [ 34.869850][ T4229] Quota error (device loop3): qtree_read_dquot: Can't read quota structure for id 0 [ 34.872085][ T4226] Quota error (device loop0): qtree_read_dquot: Can't read quota structure for id 0 [ 34.876656][ T4229] EXT4-fs (loop3): 1 truncate cleaned up [ 34.881054][ T4227] EXT4-fs (loop2): 1 truncate cleaned up [ 34.884685][ T4226] EXT4-fs (loop0): 1 truncate cleaned up [ 34.887602][ T4225] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 34.887654][ T4223] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 34.890721][ T4224] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 34.895840][ T4227] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 34.898546][ T4226] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 34.900770][ T4225] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.902753][ T4224] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.905732][ T4223] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.906016][ T4229] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 34.911351][ T4227] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.913415][ T4226] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.916836][ T4229] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=9842c028, mo2=0002] [ 34.923834][ T4225] EXT4-fs (loop4): re-mounted. Quota mode: writeback. [ 34.929668][ T4224] EXT4-fs (loop1): re-mounted. Quota mode: writeback. [ 34.931554][ T4223] EXT4-fs (loop5): re-mounted. Quota mode: writeback. [ 34.934966][ T4227] EXT4-fs (loop2): re-mounted. Quota mode: writeback. executing program executing program [ 34.947608][ T4226] EXT4-fs (loop0): re-mounted. Quota mode: writeback. [ 34.954239][ T4229] EXT4-fs (loop3): re-mounted. Quota mode: writeback. executing program executing program executing program executing program [ 34.992412][ T4243] [ 34.992979][ T4243] ====================================================== [ 34.994455][ T4243] WARNING: possible circular locking dependency detected [ 34.995875][ T4243] 6.1.28-syzkaller #0 Not tainted [ 34.996960][ T4243] ------------------------------------------------------ [ 34.998538][ T4243] syz-executor142/4243 is trying to acquire lock: [ 34.999983][ T4243] ffff0000d817c0e0 (&type->s_umount_key#30){++++}-{3:3}, at: __arm64_sys_quotactl_fd+0x30c/0x4a4 [ 35.002283][ T4243] [ 35.002283][ T4243] but task is already holding lock: [ 35.003857][ T4243] ffff0000d817c460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 35.005699][ T4243] [ 35.005699][ T4243] which lock already depends on the new lock. [ 35.005699][ T4243] [ 35.008019][ T4243] [ 35.008019][ T4243] the existing dependency chain (in reverse order) is: [ 35.009932][ T4243] [ 35.009932][ T4243] -> #1 (sb_writers#3){.+.+}-{0:0}: [ 35.011533][ T4243] write_mmp_block+0x100/0xb8c [ 35.012652][ T4243] ext4_multi_mount_protect+0x2e0/0x8a4 [ 35.014032][ T4243] ext4_reconfigure+0x218c/0x2934 [ 35.015183][ T4243] reconfigure_super+0x328/0x738 [ 35.016339][ T4243] __arm64_sys_fsconfig+0xa1c/0xd18 [ 35.017548][ T4243] invoke_syscall+0x98/0x2c0 [ 35.018556][ T4243] el0_svc_common+0x138/0x258 [ 35.019632][ T4243] do_el0_svc+0x64/0x218 [ 35.020623][ T4243] el0_svc+0x58/0x168 [ 35.021592][ T4243] el0t_64_sync_handler+0x84/0xf0 [ 35.022715][ T4243] el0t_64_sync+0x18c/0x190 [ 35.023827][ T4243] [ 35.023827][ T4243] -> #0 (&type->s_umount_key#30){++++}-{3:3}: [ 35.025682][ T4243] __lock_acquire+0x3338/0x764c [ 35.026806][ T4243] lock_acquire+0x26c/0x7cc [ 35.027893][ T4243] down_read+0x5c/0x78 [ 35.028909][ T4243] __arm64_sys_quotactl_fd+0x30c/0x4a4 [ 35.030120][ T4243] invoke_syscall+0x98/0x2c0 [ 35.031266][ T4243] el0_svc_common+0x138/0x258 [ 35.032397][ T4243] do_el0_svc+0x64/0x218 [ 35.033403][ T4243] el0_svc+0x58/0x168 [ 35.034313][ T4243] el0t_64_sync_handler+0x84/0xf0 [ 35.035542][ T4243] el0t_64_sync+0x18c/0x190 [ 35.036556][ T4243] [ 35.036556][ T4243] other info that might help us debug this: [ 35.036556][ T4243] [ 35.038663][ T4243] Possible unsafe locking scenario: [ 35.038663][ T4243] [ 35.040252][ T4243] CPU0 CPU1 [ 35.041372][ T4243] ---- ---- [ 35.042504][ T4243] lock(sb_writers#3); [ 35.043419][ T4243] lock(&type->s_umount_key#30); [ 35.044913][ T4243] lock(sb_writers#3); [ 35.046268][ T4243] lock(&type->s_umount_key#30); [ 35.047311][ T4243] [ 35.047311][ T4243] *** DEADLOCK *** [ 35.047311][ T4243] [ 35.048971][ T4243] 1 lock held by syz-executor142/4243: [ 35.050057][ T4243] #0: ffff0000d817c460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 35.052032][ T4243] [ 35.052032][ T4243] stack backtrace: [ 35.053240][ T4243] CPU: 0 PID: 4243 Comm: syz-executor142 Not tainted 6.1.28-syzkaller #0 [ 35.054986][ T4243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 35.057117][ T4243] Call trace: [ 35.057825][ T4243] dump_backtrace+0x1c8/0x1f4 [ 35.058748][ T4243] show_stack+0x2c/0x3c [ 35.059591][ T4243] dump_stack_lvl+0x108/0x170 [ 35.060622][ T4243] dump_stack+0x1c/0x5c [ 35.061494][ T4243] print_circular_bug+0x150/0x1b8 [ 35.062647][ T4243] check_noncircular+0x2cc/0x378 [ 35.063747][ T4243] __lock_acquire+0x3338/0x764c [ 35.064739][ T4243] lock_acquire+0x26c/0x7cc [ 35.065746][ T4243] down_read+0x5c/0x78 [ 35.066614][ T4243] __arm64_sys_quotactl_fd+0x30c/0x4a4 [ 35.067729][ T4243] invoke_syscall+0x98/0x2c0 [ 35.068692][ T4243] el0_svc_common+0x138/0x258 [ 35.069696][ T4243] do_el0_svc+0x64/0x218 [ 35.070635][ T4243] el0_svc+0x58/0x168 [ 35.071477][ T4243] el0t_64_sync_handler+0x84/0xf0 [ 35.072551][ T4243] el0t_64_sync+0x18c/0x190 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 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 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 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 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 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 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 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 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 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 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 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 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 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