Warning: Permanently added '10.128.0.193' (ECDSA) to the list of known hosts. executing program executing program [ 34.601472][ T4221] loop0: detected capacity change from 0 to 512 executing program executing program [ 34.624924][ T4222] loop2: detected capacity change from 0 to 512 executing program [ 34.631575][ T4226] loop3: detected capacity change from 0 to 512 [ 34.636141][ T4221] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 34.639617][ T4222] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. executing program [ 34.647111][ T4228] loop4: detected capacity change from 0 to 512 [ 34.653421][ T4229] loop5: detected capacity change from 0 to 512 [ 34.664752][ T4226] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 34.670467][ T4230] loop1: detected capacity change from 0 to 512 [ 34.684917][ T4222] EXT4-fs error (device loop2): ext4_quota_enable:6940: comm syz-executor363: Bad quota inum: 12, type: 1 [ 34.685180][ T4229] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 34.687965][ T4221] EXT4-fs error (device loop0): ext4_quota_enable:6940: comm syz-executor363: Bad quota inum: 12, type: 1 [ 34.694433][ T4221] EXT4-fs warning (device loop0): ext4_enable_quotas:6988: Failed to enable quota tracking (type=1, err=-117, ino=12). Please run e2fsck to fix. [ 34.698120][ T4228] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 34.700945][ T4226] EXT4-fs error (device loop3): ext4_quota_enable:6940: comm syz-executor363: Bad quota inum: 12, type: 1 [ 34.703879][ T4222] EXT4-fs warning (device loop2): ext4_enable_quotas:6988: Failed to enable quota tracking (type=1, err=-117, ino=12). Please run e2fsck to fix. [ 34.715167][ T4230] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 34.717950][ T4226] EXT4-fs warning (device loop3): ext4_enable_quotas:6988: Failed to enable quota tracking (type=1, err=-117, ino=12). Please run e2fsck to fix. [ 34.726151][ T4229] EXT4-fs error (device loop5): ext4_quota_enable:6940: comm syz-executor363: Bad quota inum: 12, type: 1 [ 34.734106][ T4229] EXT4-fs warning (device loop5): ext4_enable_quotas:6988: Failed to enable quota tracking (type=1, err=-117, ino=12). Please run e2fsck to fix. [ 34.738866][ T4228] EXT4-fs error (device loop4): ext4_quota_enable:6940: comm syz-executor363: Bad quota inum: 12, type: 1 [ 34.742514][ T4228] EXT4-fs warning (device loop4): ext4_enable_quotas:6988: Failed to enable quota tracking (type=1, err=-117, ino=12). Please run e2fsck to fix. [ 34.747508][ T4230] EXT4-fs error (device loop1): ext4_quota_enable:6940: comm syz-executor363: Bad quota inum: 12, type: 1 [ 34.750904][ T4230] EXT4-fs warning (device loop1): ext4_enable_quotas:6988: Failed to enable quota tracking (type=1, err=-117, ino=12). Please run e2fsck to fix. executing program executing program executing program executing program executing program [ 34.832239][ T4245] [ 34.832881][ T4245] ====================================================== [ 34.834603][ T4245] WARNING: possible circular locking dependency detected executing program [ 34.836278][ T4245] 6.1.26-syzkaller #0 Not tainted [ 34.837491][ T4245] ------------------------------------------------------ [ 34.839242][ T4245] syz-executor363/4245 is trying to acquire lock: [ 34.840921][ T4245] ffff0000d79c20e0 (&type->s_umount_key#30){++++}-{3:3}, at: __arm64_sys_quotactl_fd+0x30c/0x4a4 [ 34.843487][ T4245] [ 34.843487][ T4245] but task is already holding lock: [ 34.845472][ T4245] ffff0000d79c2460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 34.847840][ T4245] [ 34.847840][ T4245] which lock already depends on the new lock. [ 34.847840][ T4245] [ 34.850526][ T4245] [ 34.850526][ T4245] the existing dependency chain (in reverse order) is: [ 34.852801][ T4245] [ 34.852801][ T4245] -> #1 (sb_writers#3){.+.+}-{0:0}: [ 34.854655][ T4245] write_mmp_block+0x100/0xb8c [ 34.856011][ T4245] ext4_multi_mount_protect+0x2e0/0x8a4 [ 34.857599][ T4245] ext4_reconfigure+0x218c/0x2934 [ 34.858967][ T4245] reconfigure_super+0x328/0x738 [ 34.860344][ T4245] __arm64_sys_fsconfig+0xa1c/0xd18 [ 34.861787][ T4245] invoke_syscall+0x98/0x2c0 [ 34.863038][ T4245] el0_svc_common+0x138/0x258 [ 34.864363][ T4245] do_el0_svc+0x64/0x218 [ 34.865553][ T4245] el0_svc+0x58/0x168 [ 34.866647][ T4245] el0t_64_sync_handler+0x84/0xf0 [ 34.868036][ T4245] el0t_64_sync+0x18c/0x190 [ 34.869361][ T4245] [ 34.869361][ T4245] -> #0 (&type->s_umount_key#30){++++}-{3:3}: [ 34.871379][ T4245] __lock_acquire+0x3338/0x764c [ 34.872626][ T4245] lock_acquire+0x26c/0x7cc [ 34.873855][ T4245] down_read+0x5c/0x78 [ 34.875013][ T4245] __arm64_sys_quotactl_fd+0x30c/0x4a4 [ 34.876503][ T4245] invoke_syscall+0x98/0x2c0 [ 34.877756][ T4245] el0_svc_common+0x138/0x258 [ 34.879105][ T4245] do_el0_svc+0x64/0x218 [ 34.880366][ T4245] el0_svc+0x58/0x168 [ 34.881525][ T4245] el0t_64_sync_handler+0x84/0xf0 [ 34.882896][ T4245] el0t_64_sync+0x18c/0x190 [ 34.884212][ T4245] [ 34.884212][ T4245] other info that might help us debug this: [ 34.884212][ T4245] [ 34.886700][ T4245] Possible unsafe locking scenario: [ 34.886700][ T4245] [ 34.888595][ T4245] CPU0 CPU1 [ 34.889864][ T4245] ---- ---- [ 34.891302][ T4245] lock(sb_writers#3); [ 34.892310][ T4245] lock(&type->s_umount_key#30); [ 34.894227][ T4245] lock(sb_writers#3); [ 34.895888][ T4245] lock(&type->s_umount_key#30); [ 34.897255][ T4245] [ 34.897255][ T4245] *** DEADLOCK *** [ 34.897255][ T4245] [ 34.899261][ T4245] 1 lock held by syz-executor363/4245: [ 34.900651][ T4245] #0: ffff0000d79c2460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 34.902956][ T4245] [ 34.902956][ T4245] stack backtrace: [ 34.904405][ T4245] CPU: 0 PID: 4245 Comm: syz-executor363 Not tainted 6.1.26-syzkaller #0 [ 34.906436][ T4245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 [ 34.909021][ T4245] Call trace: [ 34.909842][ T4245] dump_backtrace+0x1c8/0x1f4 [ 34.911070][ T4245] show_stack+0x2c/0x3c [ 34.912110][ T4245] dump_stack_lvl+0x108/0x170 [ 34.913270][ T4245] dump_stack+0x1c/0x5c [ 34.914294][ T4245] print_circular_bug+0x150/0x1b8 [ 34.915540][ T4245] check_noncircular+0x2cc/0x378 [ 34.916798][ T4245] __lock_acquire+0x3338/0x764c [ 34.918058][ T4245] lock_acquire+0x26c/0x7cc [ 34.919269][ T4245] down_read+0x5c/0x78 [ 34.920344][ T4245] __arm64_sys_quotactl_fd+0x30c/0x4a4 [ 34.921713][ T4245] invoke_syscall+0x98/0x2c0 [ 34.922857][ T4245] el0_svc_common+0x138/0x258 [ 34.924108][ T4245] do_el0_svc+0x64/0x218 [ 34.925241][ T4245] el0_svc+0x58/0x168 [ 34.926259][ T4245] el0t_64_sync_handler+0x84/0xf0 [ 34.927580][ T4245] 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