Extracting prog: 2m44.868701488s
Minimizing prog: 11m8.194864723s
Simplifying prog options: 4m36.565075988s
Extracting C: 30.348694614s
Simplifying C: 0s


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:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
listen(r0, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$eJzs28tvG0UYAPBv7SR9k1CVRx9AoCDKK2nSUnpAQiCQOICEBIdyDElalboNaoJEq4oWhMoRVeLEBXFE4i/gBBcEnJC4wh1VqlAvLZyM1t5NbMd2HnXsUP9+0jozu2PPfN6d9exONoC+NZq+JBE7I+KPiBiuZusLjFb/3L55afqfm5emkyiX3/47qZS7dfPSdF40f9+OPDMQUfgsif1N6p2/cPHMVKk0ez7Ljy+c/WB8/sLF506fnTo1e2r23OTx40ePTLxwbPL5jsSZxnVr38dzB/a+/u61N6dPXHvvl++SPP6GODpktN3GJ8rlDlfXW7tq0slADxvCmhSr3TQGK/1/OIqxtPOG47VPe9o4YEOVy+Xy/a03XykDd7Gkcg4ovxS9bgjQZfkPfXr9my9dGnpsCjderl4ApXHfzpbqloEoZGUGG65vO2k0Ik5c+ffrdImNuQ8BAFDnh3T882yz8V8hau8L3ZPNoYxExL0RsTsijkXEnoi4L6JS9oGIeHCN9TdOkiwf/xSuryuwVUrHfy9mc1v147989BcjxSy3qxL/YHLydGn2cPadHIrBLWl+ok0dP776+xetttWO/9IlrT8fC2btuD6wpf49M1MLU3cSc60bn0TsG2gWf7I4E5BExN6I2LfOOk4//e2BVttWjr+NDswzlb+JeLK6/69EQ/y5pP385PjWKM0eHs+PiuV+/e3qW63qv6P4OyDd/9ubHv+L8Y8ktfO182v59K+eSl+v/vl5y2ua9R7/Q8k7des+mlpYOD8RMZS8UW107frJhnKTS+XT+A8dbN7/d8fSN7E/ItKD+KGIeDgiHsna/mhEPBYRB9t8Cz+/8vj7649/Y6Xxz6xp/y8lhqJxTfNE8cxP39dVOrL04avb/0crqUPZmtWc/1bTrrUezQAAAPB/VYiInZEUxhbThcLYWPV/+PfE9kJpbn7hmZNzH56bqT4jMBKDhfxO13DN/dCJ7J5Lnp9syB/J7ht/WdxWyY9Nz5Vmeh089LkdLfp/6q9ir1sHbDjPa0H/0v+hf+n/0L/0f+hfTfr/tl60A+i+Zr//l1d+29aNaAvQXQ3937Qf9BHX/9C/1tP/nTPg7tC2Lw91rx1AV81vi5UfkpeQWJaIwqZoxiZKXN4czehQotdnJgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgM74LwAA//8cB+YG")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
listen(r0, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$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")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
listen(r0, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$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")

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
listen(r0, 0x80)
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$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")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
listen(r0, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$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")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
bind$bt_l2cap(0xffffffffffffffff, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
listen(0xffffffffffffffff, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$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")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, 0x0, 0x0)
listen(r0, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$eJzs28tvG0UYAPBv7SR9k1CVRx9AoCDKK2nSUnpAQiCQOICEBIdyDElalboNaoJEq4oWhMoRVeLEBXFE4i/gBBcEnJC4wh1VqlAvLZyM1t5NbMd2HnXsUP9+0jozu2PPfN6d9exONoC+NZq+JBE7I+KPiBiuZusLjFb/3L55afqfm5emkyiX3/47qZS7dfPSdF40f9+OPDMQUfgsif1N6p2/cPHMVKk0ez7Ljy+c/WB8/sLF506fnTo1e2r23OTx40ePTLxwbPL5jsSZxnVr38dzB/a+/u61N6dPXHvvl++SPP6GODpktN3GJ8rlDlfXW7tq0slADxvCmhSr3TQGK/1/OIqxtPOG47VPe9o4YEOVy+Xy/a03XykDd7Gkcg4ovxS9bgjQZfkPfXr9my9dGnpsCjderl4ApXHfzpbqloEoZGUGG65vO2k0Ik5c+ffrdImNuQ8BAFDnh3T882yz8V8hau8L3ZPNoYxExL0RsTsijkXEnoi4L6JS9oGIeHCN9TdOkiwf/xSuryuwVUrHfy9mc1v147989BcjxSy3qxL/YHLydGn2cPadHIrBLWl+ok0dP776+xetttWO/9IlrT8fC2btuD6wpf49M1MLU3cSc60bn0TsG2gWf7I4E5BExN6I2LfOOk4//e2BVttWjr+NDswzlb+JeLK6/69EQ/y5pP385PjWKM0eHs+PiuV+/e3qW63qv6P4OyDd/9ubHv+L8Y8ktfO182v59K+eSl+v/vl5y2ua9R7/Q8k7des+mlpYOD8RMZS8UW107frJhnKTS+XT+A8dbN7/d8fSN7E/ItKD+KGIeDgiHsna/mhEPBYRB9t8Cz+/8vj7649/Y6Xxz6xp/y8lhqJxTfNE8cxP39dVOrL04avb/0crqUPZmtWc/1bTrrUezQAAAPB/VYiInZEUxhbThcLYWPV/+PfE9kJpbn7hmZNzH56bqT4jMBKDhfxO13DN/dCJ7J5Lnp9syB/J7ht/WdxWyY9Nz5Vmeh089LkdLfp/6q9ir1sHbDjPa0H/0v+hf+n/0L/0f+hfTfr/tl60A+i+Zr//l1d+29aNaAvQXQ3937Qf9BHX/9C/1tP/nTPg7tC2Lw91rx1AV81vi5UfkpeQWJaIwqZoxiZKXN4czehQotdnJgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgM74LwAA//8cB+YG")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
program did not crash
simplifying guilty program options
testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
listen(r0, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$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")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
extracting C reproducer
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
program did not crash
testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @any, 0xfffa}, 0xe)
listen(r0, 0x80)
syz_mount_image$ext4(&(0x7f00000000c0)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0x1004404, &(0x7f0000000240)={[{@init_itable}, {@user_xattr}, {@noauto_da_alloc}, {@lazytime}, {@nombcache}, {@max_batch_time={'max_batch_time', 0x3d, 0x4a}}]}, 0x23, 0x44d, &(0x7f0000002580)="$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")
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
extracting C reproducer
testing compiled C program (duration=1m40s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-syz_mount_image$ext4-syz_clone
program did not crash
reproducing took 20m19.631716294s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 0 UID: 0 PID: 5502 Comm: kworker/0:4 Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events l2cap_info_timeout
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002a9f848 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff89375de8 RCX: e6bbb1eab6494400
RDX: 0000000000000000 RSI: ffffffff89375de8 RDI: 000000000000004b
RBP: ffffffff8a6208d5 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a620890 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe588aecc0 CR3: 0000000042085000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40 mm/kasan/common.c:556
 kasan_check_byte include/linux/kasan.h:399 [inline]
 lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5840
 lock_sock_nested+0x48/0x100 net/core/sock.c:3702
 lock_sock include/net/sock.h:1651 [inline]
 l2cap_sock_ready_cb+0x45/0x140 net/bluetooth/l2cap_sock.c:1674
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1263 [inline]
 l2cap_conn_start+0x750/0xe40 net/bluetooth/l2cap_core.c:1511
 l2cap_info_timeout+0x68/0xa0 net/bluetooth/l2cap_core.c:1668
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002a9f848 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff89375de8 RCX: e6bbb1eab6494400
RDX: 0000000000000000 RSI: ffffffff89375de8 RDI: 000000000000004b
RBP: ffffffff8a6208d5 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a620890 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe588aecc0 CR3: 0000000042085000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
   7:	00
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	66 0f 1f 00          	nopw   (%rax)
  1c:	48 c1 ef 03          	shr    $0x3,%rdi
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	0f b6 04 07          	movzbl (%rdi,%rax,1),%eax <-- trapping instruction
  2e:	3c 08                	cmp    $0x8,%al
  30:	0f 92 c0             	setb   %al
  33:	c3                   	ret
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	cc                   	int3
  38:	cc                   	int3
  39:	66                   	data16
  3a:	66                   	data16
  3b:	66                   	data16
  3c:	66                   	data16
  3d:	66                   	data16
  3e:	66                   	data16
  3f:	2e                   	cs

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 0 UID: 0 PID: 5502 Comm: kworker/0:4 Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events l2cap_info_timeout
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002a9f848 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff89375de8 RCX: e6bbb1eab6494400
RDX: 0000000000000000 RSI: ffffffff89375de8 RDI: 000000000000004b
RBP: ffffffff8a6208d5 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a620890 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe588aecc0 CR3: 0000000042085000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40 mm/kasan/common.c:556
 kasan_check_byte include/linux/kasan.h:399 [inline]
 lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5840
 lock_sock_nested+0x48/0x100 net/core/sock.c:3702
 lock_sock include/net/sock.h:1651 [inline]
 l2cap_sock_ready_cb+0x45/0x140 net/bluetooth/l2cap_sock.c:1674
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1263 [inline]
 l2cap_conn_start+0x750/0xe40 net/bluetooth/l2cap_core.c:1511
 l2cap_info_timeout+0x68/0xa0 net/bluetooth/l2cap_core.c:1668
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002a9f848 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff89375de8 RCX: e6bbb1eab6494400
RDX: 0000000000000000 RSI: ffffffff89375de8 RDI: 000000000000004b
RBP: ffffffff8a6208d5 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a620890 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe588aecc0 CR3: 0000000042085000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
   7:	00
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	66 0f 1f 00          	nopw   (%rax)
  1c:	48 c1 ef 03          	shr    $0x3,%rdi
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	0f b6 04 07          	movzbl (%rdi,%rax,1),%eax <-- trapping instruction
  2e:	3c 08                	cmp    $0x8,%al
  30:	0f 92 c0             	setb   %al
  33:	c3                   	ret
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	cc                   	int3
  38:	cc                   	int3
  39:	66                   	data16
  3a:	66                   	data16
  3b:	66                   	data16
  3c:	66                   	data16
  3d:	66                   	data16
  3e:	66                   	data16
  3f:	2e                   	cs