Extracting prog: 2m35.793705532s
Minimizing prog: 12m54.153455868s
Simplifying prog options: 0s
Extracting C: 37.300315583s
Simplifying C: 12m17.847400808s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d00, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d47, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$eJzs3d9rXFkdAPDvvcnU/khNqj7UgrXYSlq0M0lj2+BDrSD2qaDW9xqTSQiZZEJm0jahSIp/gCCigk8++SL4BwjSP0GEgvu+7C67LLvt7sM+7O4sM3Onm2ZnmpROctvk84GTe86dH9/vSZg759x7MhPAgXUmIq5HxEBEXIiI4Wx/mpUbzcZG+35PHt+fbpYkGo1bHySRZPs6z5Vk22Pth8ThiPjVjYjfJl+NW1tbX5iqVMorWbtUX1wu1dbWL84vTs2V58pLExPjVyavTl6eHOtLP0ci4trP3vnzH/7x82v/+eHdN2+/d/53zbSGsrw396Of2l0vtH4XHYMRsbIbwXIwkG0LOecBAMDONMf434iI77XG/8Mx0BqdAgAAAPtJ4ydD8WkS0QAAAAD2rbS1BjZJi9m61KFI02KxvYb3W3E0rVRr9R/MVleXZtprZUeikM7OV8pj2VrhkSgkzfZ4tsa20760pT0RESci4k/DR1rt4nS1MpP3yQ8AAAA4II5tmv+nEfHxcHv+DwAAAOwzI3knAAAAAOw6838AAADY/8z/AQAAYF/7xc2bzdLofP/1zJ211YXqnYsz5dpCcXF1ujhdXVkuzlWrc63P7Fvc7vkq1eryj2Jp9V6pXq7VS7W19duL1dWl+u35Z74CGwAAANhDJ7778I0kIjZ+fKRVmg7lnRSwJ5IXufPbu5cHsPcG8k4AyM1g3gkAuSnknQCQu+3OA/RcvPPf/ucCAADsjtFv977+79wA7G9p3gkAAHvO9X84uApWAMKB9/Vtbn/56/+NxgslBAAA9N1QqyRpMbsWOBRpWixGHG99LUAhmZ2vlMey+cH/hwtfa7bHW49MXux/hwEAAAAAAAAAAAAAAAAAAAAAAADgAGs0kmgAAAAA+1pE+m7S+jT/iNHhc0Nbzw8cSj4Zbm0j4u7fbv3l3lS9vjLe3P/h0/31v2b7L+VxBgMAAADYqjNP78zjAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAKCfnjy+P90pexn3/Z9GxEi3+INxuLU9HIWIOPpREoObHpdExEAf4m88iIiT3eInzbRiJMuiW/wjOcZPI+JYH+LDQfawefy53u31l8aZ1rb7628wKy+r9/EvfXr8G+hx/Dm+wxinHv2r1DP+g4hTg92PP534SY/4Z3cY/ze/Xl/vdVvj7xGjXd9/kmdileqLy6Xa2vrF+cWpufJceWliYvzK5NXJy5Njpdn5Sjn72TXGH7/z78+f1/+jPeKPbNP/czvs/2eP7j3+Zrta6Bb//Nnu778ne8RPs/e+72f15u2jnfpGu77Z6X/+7/Tz+j/To//b/f3P77D/F375+7d2eFcAYA/U1tYXpiqV8sprVmmOP16BNFReyUpzfPoKpPFaV/I+MgEAAP325aA/70wAAAAAAAAAAAAAAAAAAADg4NqLjxPbGnMjn64CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADzXFwEAAP//noDRng==")

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d00, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d47, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$eJzs3d9rXFkdAPDvvcnU/khNqj7UgrXYSlq0M0lj2+BDrSD2qaDW9xqTSQiZZEJm0jahSIp/gCCigk8++SL4BwjSP0GEgvu+7C67LLvt7sM+7O4sM3Onm2ZnmpROctvk84GTe86dH9/vSZg759x7MhPAgXUmIq5HxEBEXIiI4Wx/mpUbzcZG+35PHt+fbpYkGo1bHySRZPs6z5Vk22Pth8ThiPjVjYjfJl+NW1tbX5iqVMorWbtUX1wu1dbWL84vTs2V58pLExPjVyavTl6eHOtLP0ci4trP3vnzH/7x82v/+eHdN2+/d/53zbSGsrw396Of2l0vtH4XHYMRsbIbwXIwkG0LOecBAMDONMf434iI77XG/8Mx0BqdAgAAAPtJ4ydD8WkS0QAAAAD2rbS1BjZJi9m61KFI02KxvYb3W3E0rVRr9R/MVleXZtprZUeikM7OV8pj2VrhkSgkzfZ4tsa20760pT0RESci4k/DR1rt4nS1MpP3yQ8AAAA4II5tmv+nEfHxcHv+DwAAAOwzI3knAAAAAOw6838AAADY/8z/AQAAYF/7xc2bzdLofP/1zJ211YXqnYsz5dpCcXF1ujhdXVkuzlWrc63P7Fvc7vkq1eryj2Jp9V6pXq7VS7W19duL1dWl+u35Z74CGwAAANhDJ7778I0kIjZ+fKRVmg7lnRSwJ5IXufPbu5cHsPcG8k4AyM1g3gkAuSnknQCQu+3OA/RcvPPf/ucCAADsjtFv977+79wA7G9p3gkAAHvO9X84uApWAMKB9/Vtbn/56/+NxgslBAAA9N1QqyRpMbsWOBRpWixGHG99LUAhmZ2vlMey+cH/hwtfa7bHW49MXux/hwEAAAAAAAAAAAAAAAAAAAAAAADgAGs0kmgAAAAA+1pE+m7S+jT/iNHhc0Nbzw8cSj4Zbm0j4u7fbv3l3lS9vjLe3P/h0/31v2b7L+VxBgMAAADYqjNP78zjAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAKCfnjy+P90pexn3/Z9GxEi3+INxuLU9HIWIOPpREoObHpdExEAf4m88iIiT3eInzbRiJMuiW/wjOcZPI+JYH+LDQfawefy53u31l8aZ1rb7628wKy+r9/EvfXr8G+hx/Dm+wxinHv2r1DP+g4hTg92PP534SY/4Z3cY/ze/Xl/vdVvj7xGjXd9/kmdileqLy6Xa2vrF+cWpufJceWliYvzK5NXJy5Njpdn5Sjn72TXGH7/z78+f1/+jPeKPbNP/czvs/2eP7j3+Zrta6Bb//Nnu778ne8RPs/e+72f15u2jnfpGu77Z6X/+7/Tz+j/To//b/f3P77D/F375+7d2eFcAYA/U1tYXpiqV8sprVmmOP16BNFReyUpzfPoKpPFaV/I+MgEAAP325aA/70wAAAAAAAAAAAAAAAAAAADg4NqLjxPbGnMjn64CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADzXFwEAAP//noDRng==")

program crashed: possible deadlock in dquot_commit
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d00, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$eJzs3d9rW9cdAPDvvbay/HBmZ9tDFlgWlgwnbJHseEnMHrIMxvIU2Ja9Z54tG2PZMpacxCYMh/0BgzG2wZ72tJdB/4BCyZ9QCoH2vbSlpbRJ+9CHtiqSrtLElWKXKL6O/fnAyT3nXknf74nR1Tn3HqQA9q1TEXE1IgYi4lxEDGf706xcazY22o979PDudLMk0Wjc+CiJJNvXea0k2x5pPyUORsQfrkX8Oflm3Nra+sJUpVJeydql+uJyqba2fn5+cWquPFdempgYvzR5efLi5Fhf+jkSEVd+894///a/31557ee33775wdm/NNMayvJ+sh/91O56ofV/0TEYESsvIlgOBrJtIec8AADYnuYY/3sR8ZPW+H84BlqjUwAAAGAvafxqKD5PIhoAAADAnpW21sAmaTFbCzAUaVosttfw/iAOp5Vqrf6z2erq0kx7rexIFNLZ+Up5LFsrPBKFpNkez9bYdtoXNrUnIuJYRPxj+FCrXZyuVmbyvvgBAAAA+8SRTfP/T4fb838AAABgjxnJOwEAAADghTP/BwAAgL3P/B8AAAD2tN9dv94sjc7vX8/cWltdqN46P1OuLRQXV6eL09WV5eJctTrX+s6+xa1er1KtLv8illbvlOrlWr1UW1u/uVhdXarfnH/qJ7ABAACAHXTsx/ffSiJi45eHWqXpQN5JAbvPu3knAPTTQN4JALkZzDsBIDeFvBMAcpdscbzn4p3X+58LAADwYoz+sPf9f9cGYG9L804AANhx7v/D/lWwAhD2ve9ucfz57/83Gt8qIQAAoO+GWiVJi9m9wKFI02Ix4mjrZwEKyex8pTyWzQ/eHC58p9kebz0z2XLNMAAAAAAAAAAAAAAAAAAAAAAAAADQ1mgk0QAAAAD2tIj0/aT1bf4Ro8NnhjZfHziQfDbc2kbE7f/c+NedqXp9Zby5/+PH++v/zvZfyOMKBgAAALBZZ57emccDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQD89enh3ulN2Mu6Hv46IkW7xB+Nga3swChFx+JMkBp94XhIRA32Iv3EvIo53i58004qRLItu8Q/lGD+NiCN9iA/72f3m+edqt/dfGqda2+7vv8GsPK/e57/08flvoMf55+g2Y5x48EqpZ/x7EScGu59/OvGTHvFPbzP+n/64vt7rWOO/EaNdP3+Sp2KV6ovLpdra+vn5xam58lx5aWJi/NLk5cmLk2Ol2flKOfu3a4y//+jVL5/V/8M94o9s0f8z2+z/Fw/uPPx+u1roFv/s6e6fv8d7xE+zz76fZvXm8dFOfaNdf9LJ/79x8ln9n+nR/63+/me32f9zv//rO9t8KACwA2pr6wtTlUp55SWrNMcfuyANlV1ZaY5Pd0EaL3Ul7zMTAADQb18P+vPOBAAAAAAAAAAAAAAAAAAAAPavnfg6sc0xN/LpKgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADAM30VAAD//5Hz0Zs=")

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d47, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: possible deadlock in dquot_commit
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: possible deadlock in dquot_commit
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: possible deadlock in dquot_commit
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: possible deadlock in dquot_commit
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: possible deadlock in dquot_commit
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: possible deadlock in dquot_commit
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
program crashed: possible deadlock in dquot_commit
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d00, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d47, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")

program crashed: possible deadlock in dquot_commit
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d00, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d47, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")

program crashed: possible deadlock in dquot_commit
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d00, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x4d47, &(0x7f00000002c0)={[{@errors_remount}, {@sysvgroups}, {@nojournal_checksum}, {@auto_da_alloc_val={'auto_da_alloc', 0x3d, 0x7}}, {@nobarrier}, {@resgid}, {@dioread_nolock}, {@auto_da_alloc}, {@usrquota}]}, 0x12, 0x4c5, &(0x7f0000000ec0)="$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")

program crashed: possible deadlock in dquot_commit
validation run: crashed=true
reproducing took 31m30.811837834s
repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 512
======================================================
WARNING: possible circular locking dependency detected
5.15.189-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.99/4553 is trying to acquire lock:
ffff88805db5eea8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x5a/0x410 fs/quota/dquot.c:507

but task is already holding lock:
ffff888074deaa58 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x96d/0x10d0 fs/ext4/inode.c:4245

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&ei->i_data_sem/2){++++}-{3:3}:
       down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
       ext4_map_blocks+0x32f/0x1b30 fs/ext4/inode.c:598
       ext4_getblk+0x16d/0x630 fs/ext4/inode.c:870
       ext4_bread+0x26/0x180 fs/ext4/inode.c:923
       ext4_quota_write+0x230/0x570 fs/ext4/super.c:6594
       write_blk fs/quota/quota_tree.c:64 [inline]
       get_free_dqblk+0x387/0x7d0 fs/quota/quota_tree.c:125
       do_insert_tree+0x214/0x1970 fs/quota/quota_tree.c:335
       do_insert_tree+0x5b1/0x1970 fs/quota/quota_tree.c:366
       dq_insert_tree fs/quota/quota_tree.c:392 [inline]
       qtree_write_dquot+0x361/0x4b0 fs/quota/quota_tree.c:411
       v2_write_dquot+0x108/0x190 fs/quota/quota_v2.c:358
       dquot_acquire+0x2d5/0x520 fs/quota/dquot.c:472
       ext4_acquire_dquot+0x2d9/0x4a0 fs/ext4/super.c:6203
       dqget+0x778/0xeb0 fs/quota/dquot.c:988
       __dquot_initialize+0x3b6/0xcb0 fs/quota/dquot.c:1517
       ext4_process_orphan+0x54/0x300 fs/ext4/orphan.c:329
       ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
       ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
       mount_bdev+0x287/0x3c0 fs/super.c:1400
       legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
       vfs_get_tree+0x88/0x270 fs/super.c:1530
       do_new_mount+0x24a/0xa40 fs/namespace.c:3014
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #1 (&s->s_dquot.dqio_sem){++++}-{3:3}:
       down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
       v2_read_dquot+0x4a/0x110 fs/quota/quota_v2.c:332
       dquot_acquire+0x152/0x520 fs/quota/dquot.c:463
       ext4_acquire_dquot+0x2d9/0x4a0 fs/ext4/super.c:6203
       dqget+0x778/0xeb0 fs/quota/dquot.c:988
       __dquot_initialize+0x3b6/0xcb0 fs/quota/dquot.c:1517
       ext4_process_orphan+0x54/0x300 fs/ext4/orphan.c:329
       ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
       ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
       mount_bdev+0x287/0x3c0 fs/super.c:1400
       legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
       vfs_get_tree+0x88/0x270 fs/super.c:1530
       do_new_mount+0x24a/0xa40 fs/namespace.c:3014
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #0 (&dquot->dq_lock){+.+.}-{3:3}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain kernel/locking/lockdep.c:3788 [inline]
       __lock_acquire+0x2c33/0x7c60 kernel/locking/lockdep.c:5012
       lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
       __mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
       dquot_commit+0x5a/0x410 fs/quota/dquot.c:507
       ext4_write_dquot+0x1f0/0x360 fs/ext4/super.c:6183
       mark_dquot_dirty fs/quota/dquot.c:372 [inline]
       mark_all_dquot_dirty+0xf9/0x400 fs/quota/dquot.c:412
       __dquot_free_space+0x7ca/0xb90 fs/quota/dquot.c:1942
       dquot_free_space_nodirty include/linux/quotaops.h:376 [inline]
       dquot_free_space include/linux/quotaops.h:381 [inline]
       dquot_free_block include/linux/quotaops.h:392 [inline]
       ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline]
       ext4_free_blocks+0x1af5/0x2480 fs/ext4/mballoc.c:6286
       ext4_remove_blocks fs/ext4/extents.c:2525 [inline]
       ext4_ext_rm_leaf fs/ext4/extents.c:2691 [inline]
       ext4_ext_remove_space+0x1eaa/0x43a0 fs/ext4/extents.c:2939
       ext4_ext_truncate+0x192/0x240 fs/ext4/extents.c:4473
       ext4_truncate+0x9f1/0x10d0 fs/ext4/inode.c:4250
       ext4_evict_inode+0xb43/0x1080 fs/ext4/inode.c:289
       evict+0x485/0x870 fs/inode.c:647
       ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
       ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
       mount_bdev+0x287/0x3c0 fs/super.c:1400
       legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
       vfs_get_tree+0x88/0x270 fs/super.c:1530
       do_new_mount+0x24a/0xa40 fs/namespace.c:3014
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

other info that might help us debug this:

Chain exists of:
  &dquot->dq_lock --> &s->s_dquot.dqio_sem --> &ei->i_data_sem/2

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ei->i_data_sem/2);
                               lock(&s->s_dquot.dqio_sem);
                               lock(&ei->i_data_sem/2);
  lock(&dquot->dq_lock);

 *** DEADLOCK ***

4 locks held by syz.0.99/4553:
 #0: ffff888077c060e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 fs/super.c:229
 #1: ffff888077c06650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1811 [inline]
 #1: ffff888077c06650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1928 [inline]
 #1: ffff888077c06650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x444/0x1080 fs/ext4/inode.c:243
 #2: ffff888074deaa58 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x96d/0x10d0 fs/ext4/inode.c:4245
 #3: ffffffff8c23ea18 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311

stack backtrace:
CPU: 1 PID: 4553 Comm: syz.0.99 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 check_noncircular+0x274/0x310 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain kernel/locking/lockdep.c:3788 [inline]
 __lock_acquire+0x2c33/0x7c60 kernel/locking/lockdep.c:5012
 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
 __mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 dquot_commit+0x5a/0x410 fs/quota/dquot.c:507
 ext4_write_dquot+0x1f0/0x360 fs/ext4/super.c:6183
 mark_dquot_dirty fs/quota/dquot.c:372 [inline]
 mark_all_dquot_dirty+0xf9/0x400 fs/quota/dquot.c:412
 __dquot_free_space+0x7ca/0xb90 fs/quota/dquot.c:1942
 dquot_free_space_nodirty include/linux/quotaops.h:376 [inline]
 dquot_free_space include/linux/quotaops.h:381 [inline]
 dquot_free_block include/linux/quotaops.h:392 [inline]
 ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline]
 ext4_free_blocks+0x1af5/0x2480 fs/ext4/mballoc.c:6286
 ext4_remove_blocks fs/ext4/extents.c:2525 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2691 [inline]
 ext4_ext_remove_space+0x1eaa/0x43a0 fs/ext4/extents.c:2939
 ext4_ext_truncate+0x192/0x240 fs/ext4/extents.c:4473
 ext4_truncate+0x9f1/0x10d0 fs/ext4/inode.c:4250
 ext4_evict_inode+0xb43/0x1080 fs/ext4/inode.c:289
 evict+0x485/0x870 fs/inode.c:647
 ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
 ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
 mount_bdev+0x287/0x3c0 fs/super.c:1400
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x24a/0xa40 fs/namespace.c:3014
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fcc8f4ec38a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe6009b2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe6009b380 RCX: 00007fcc8f4ec38a
RDX: 0000200000000040 RSI: 0000200000000500 RDI: 00007ffe6009b340
RBP: 0000200000000040 R08: 00007ffe6009b380 R09: 0000000000004d00
R10: 0000000000004d00 R11: 0000000000000246 R12: 0000200000000500
R13: 00007ffe6009b340 R14: 00000000000004c5 R15: 000000000000002c
 </TASK>
EXT4-fs (loop0): 1 orphan inode deleted
ext4 filesystem being mounted at /82/file1 supports timestamps until 2038-01-19 (0x7fffffff)

final repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 512
======================================================
WARNING: possible circular locking dependency detected
5.15.189-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.99/4553 is trying to acquire lock:
ffff88805db5eea8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x5a/0x410 fs/quota/dquot.c:507

but task is already holding lock:
ffff888074deaa58 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x96d/0x10d0 fs/ext4/inode.c:4245

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&ei->i_data_sem/2){++++}-{3:3}:
       down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
       ext4_map_blocks+0x32f/0x1b30 fs/ext4/inode.c:598
       ext4_getblk+0x16d/0x630 fs/ext4/inode.c:870
       ext4_bread+0x26/0x180 fs/ext4/inode.c:923
       ext4_quota_write+0x230/0x570 fs/ext4/super.c:6594
       write_blk fs/quota/quota_tree.c:64 [inline]
       get_free_dqblk+0x387/0x7d0 fs/quota/quota_tree.c:125
       do_insert_tree+0x214/0x1970 fs/quota/quota_tree.c:335
       do_insert_tree+0x5b1/0x1970 fs/quota/quota_tree.c:366
       dq_insert_tree fs/quota/quota_tree.c:392 [inline]
       qtree_write_dquot+0x361/0x4b0 fs/quota/quota_tree.c:411
       v2_write_dquot+0x108/0x190 fs/quota/quota_v2.c:358
       dquot_acquire+0x2d5/0x520 fs/quota/dquot.c:472
       ext4_acquire_dquot+0x2d9/0x4a0 fs/ext4/super.c:6203
       dqget+0x778/0xeb0 fs/quota/dquot.c:988
       __dquot_initialize+0x3b6/0xcb0 fs/quota/dquot.c:1517
       ext4_process_orphan+0x54/0x300 fs/ext4/orphan.c:329
       ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
       ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
       mount_bdev+0x287/0x3c0 fs/super.c:1400
       legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
       vfs_get_tree+0x88/0x270 fs/super.c:1530
       do_new_mount+0x24a/0xa40 fs/namespace.c:3014
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #1 (&s->s_dquot.dqio_sem){++++}-{3:3}:
       down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
       v2_read_dquot+0x4a/0x110 fs/quota/quota_v2.c:332
       dquot_acquire+0x152/0x520 fs/quota/dquot.c:463
       ext4_acquire_dquot+0x2d9/0x4a0 fs/ext4/super.c:6203
       dqget+0x778/0xeb0 fs/quota/dquot.c:988
       __dquot_initialize+0x3b6/0xcb0 fs/quota/dquot.c:1517
       ext4_process_orphan+0x54/0x300 fs/ext4/orphan.c:329
       ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
       ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
       mount_bdev+0x287/0x3c0 fs/super.c:1400
       legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
       vfs_get_tree+0x88/0x270 fs/super.c:1530
       do_new_mount+0x24a/0xa40 fs/namespace.c:3014
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #0 (&dquot->dq_lock){+.+.}-{3:3}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain kernel/locking/lockdep.c:3788 [inline]
       __lock_acquire+0x2c33/0x7c60 kernel/locking/lockdep.c:5012
       lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
       __mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
       dquot_commit+0x5a/0x410 fs/quota/dquot.c:507
       ext4_write_dquot+0x1f0/0x360 fs/ext4/super.c:6183
       mark_dquot_dirty fs/quota/dquot.c:372 [inline]
       mark_all_dquot_dirty+0xf9/0x400 fs/quota/dquot.c:412
       __dquot_free_space+0x7ca/0xb90 fs/quota/dquot.c:1942
       dquot_free_space_nodirty include/linux/quotaops.h:376 [inline]
       dquot_free_space include/linux/quotaops.h:381 [inline]
       dquot_free_block include/linux/quotaops.h:392 [inline]
       ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline]
       ext4_free_blocks+0x1af5/0x2480 fs/ext4/mballoc.c:6286
       ext4_remove_blocks fs/ext4/extents.c:2525 [inline]
       ext4_ext_rm_leaf fs/ext4/extents.c:2691 [inline]
       ext4_ext_remove_space+0x1eaa/0x43a0 fs/ext4/extents.c:2939
       ext4_ext_truncate+0x192/0x240 fs/ext4/extents.c:4473
       ext4_truncate+0x9f1/0x10d0 fs/ext4/inode.c:4250
       ext4_evict_inode+0xb43/0x1080 fs/ext4/inode.c:289
       evict+0x485/0x870 fs/inode.c:647
       ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
       ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
       mount_bdev+0x287/0x3c0 fs/super.c:1400
       legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
       vfs_get_tree+0x88/0x270 fs/super.c:1530
       do_new_mount+0x24a/0xa40 fs/namespace.c:3014
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

other info that might help us debug this:

Chain exists of:
  &dquot->dq_lock --> &s->s_dquot.dqio_sem --> &ei->i_data_sem/2

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ei->i_data_sem/2);
                               lock(&s->s_dquot.dqio_sem);
                               lock(&ei->i_data_sem/2);
  lock(&dquot->dq_lock);

 *** DEADLOCK ***

4 locks held by syz.0.99/4553:
 #0: ffff888077c060e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 fs/super.c:229
 #1: ffff888077c06650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1811 [inline]
 #1: ffff888077c06650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1928 [inline]
 #1: ffff888077c06650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x444/0x1080 fs/ext4/inode.c:243
 #2: ffff888074deaa58 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x96d/0x10d0 fs/ext4/inode.c:4245
 #3: ffffffff8c23ea18 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311

stack backtrace:
CPU: 1 PID: 4553 Comm: syz.0.99 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 check_noncircular+0x274/0x310 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain kernel/locking/lockdep.c:3788 [inline]
 __lock_acquire+0x2c33/0x7c60 kernel/locking/lockdep.c:5012
 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
 __mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 dquot_commit+0x5a/0x410 fs/quota/dquot.c:507
 ext4_write_dquot+0x1f0/0x360 fs/ext4/super.c:6183
 mark_dquot_dirty fs/quota/dquot.c:372 [inline]
 mark_all_dquot_dirty+0xf9/0x400 fs/quota/dquot.c:412
 __dquot_free_space+0x7ca/0xb90 fs/quota/dquot.c:1942
 dquot_free_space_nodirty include/linux/quotaops.h:376 [inline]
 dquot_free_space include/linux/quotaops.h:381 [inline]
 dquot_free_block include/linux/quotaops.h:392 [inline]
 ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline]
 ext4_free_blocks+0x1af5/0x2480 fs/ext4/mballoc.c:6286
 ext4_remove_blocks fs/ext4/extents.c:2525 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2691 [inline]
 ext4_ext_remove_space+0x1eaa/0x43a0 fs/ext4/extents.c:2939
 ext4_ext_truncate+0x192/0x240 fs/ext4/extents.c:4473
 ext4_truncate+0x9f1/0x10d0 fs/ext4/inode.c:4250
 ext4_evict_inode+0xb43/0x1080 fs/ext4/inode.c:289
 evict+0x485/0x870 fs/inode.c:647
 ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:474
 ext4_fill_super+0x9288/0x9a00 fs/ext4/super.c:4973
 mount_bdev+0x287/0x3c0 fs/super.c:1400
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x24a/0xa40 fs/namespace.c:3014
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fcc8f4ec38a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe6009b2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe6009b380 RCX: 00007fcc8f4ec38a
RDX: 0000200000000040 RSI: 0000200000000500 RDI: 00007ffe6009b340
RBP: 0000200000000040 R08: 00007ffe6009b380 R09: 0000000000004d00
R10: 0000000000004d00 R11: 0000000000000246 R12: 0000200000000500
R13: 00007ffe6009b340 R14: 00000000000004c5 R15: 000000000000002c
 </TASK>
EXT4-fs (loop0): 1 orphan inode deleted
ext4 filesystem being mounted at /82/file1 supports timestamps until 2038-01-19 (0x7fffffff)