Extracting prog: 4m30.592286343s
Minimizing prog: 1h2m20.406126564s
Simplifying prog options: 12m18.766617826s
Extracting C: 5m19.088850539s
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_mount_image$squashfs-mount$overlay-openat$dir-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='.\x00', 0x0, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

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_mount_image$squashfs-mount$overlay-openat$dir-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='.\x00', 0x0, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

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: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_mount_image$squashfs-mount$overlay-openat$dir-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='.\x00', 0x0, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program crashed: general protection fault in lock_sock_nested
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-openat$dir-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='.\x00', 0x0, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-openat$dir-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$eJzsVU+rElEU/x1nHK1Fto6gRRK2SGfGinYZRPQB2kaJTiaN/XGEUoSmld8jAr9Gi/ZtghZBG1tU0MJoGxP33jPjnd5b6HuKPLg/0N+5598998zl3MfRiwgA/i6nHbQg4eAMvhDBBnCBlO5OSfFPR3Gd199txZdZ/5Y5YUTjyZN2GAbDLQlJkrz+33S4d0EVgk32kJVzXGr6tLxf2TTPDgTaXeYjNConiCuwzcKSyvrOt2/t86PkhAeW6uN2Ev7Z93GG9vHCxSBY2/kdcheAhGCtHy4FOmhaLW++KeCXvOmfl9OOEB7ylBK6rvqR7iO+5gfN55wtf2QhyXzEzSeISVNCYzR43ojGkyv9QbsX9IKnvt+87l513Wt+41E/DFz1T9oW6YgS3JJJgFOavQjgKw/Y09DwQ2y7Ko3tpMeK9ic8pGsXkUNBi7WYCe+zWA6DaME9XEIZwMuYNG1VZrEhj3QXBIsXHpcLyvYqS0O98yzszkCgNGwOO8vhLVCUC2dVo7I0b8SpasZcZS4yz5kXzOmblb5FtszwjVe1WJT4qj0aDT3nI4d44tWTOt9Jrf7ZWG+Y2PW3kz/c+RIMDAwMDAwMDE4Y/gUAAP//ruxR0w==")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='.\x00', 0x0, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-openat$dir-syz_init_net_socket$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='.\x00', 0x0, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-openat$dir-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='.\x00', 0x0, 0x0)
bind$bt_l2cap(0xffffffffffffffff, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(0xffffffffffffffff, 0x3)
accept4(0xffffffffffffffff, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program crashed: kernel BUG in z3fold_page_migrate
testing program (duration=6m0s, {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_mount_image$squashfs-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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}}): mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, 0x0, &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', 0x0, 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, 0x0, 0x0)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$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")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program crashed: general protection fault in lock_sock_nested
extracting C reproducer
testing compiled C program (duration=6m0s, {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_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$squashfs-mount$overlay-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-accept4
detailed listing:
executing program 0:
syz_mount_image$squashfs(&(0x7f0000000180), &(0x7f00000001c0)='./bus\x00', 0x200003, &(0x7f0000000000)=ANY=[], 0x21, 0x1cf, &(0x7f0000000740)="$eJzsVU+rElEU/x1nHK1Fto6gRRK2SGfGinYZRPQB2kaJTiaN/XGEUoSmld8jAr9Gi/ZtghZBG1tU0MJoGxP33jPjnd5b6HuKPLg/0N+5598998zl3MfRiwgA/i6nHbQg4eAMvhDBBnCBlO5OSfFPR3Gd199txZdZ/5Y5YUTjyZN2GAbDLQlJkrz+33S4d0EVgk32kJVzXGr6tLxf2TTPDgTaXeYjNConiCuwzcKSyvrOt2/t86PkhAeW6uN2Ev7Z93GG9vHCxSBY2/kdcheAhGCtHy4FOmhaLW++KeCXvOmfl9OOEB7ylBK6rvqR7iO+5gfN55wtf2QhyXzEzSeISVNCYzR43ojGkyv9QbsX9IKnvt+87l513Wt+41E/DFz1T9oW6YgS3JJJgFOavQjgKw/Y09DwQ2y7Ko3tpMeK9ic8pGsXkUNBi7WYCe+zWA6DaME9XEIZwMuYNG1VZrEhj3QXBIsXHpcLyvYqS0O98yzszkCgNGwOO8vhLVCUC2dVo7I0b8SpasZcZS4yz5kXzOmblb5FtszwjVe1WJT4qj0aDT3nI4d44tWTOt9Jrf7ZWG+Y2PW3kz/c+RIMDAwMDAwMDE4Y/gUAAP//ruxR0w==")
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f})
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4}, 0xe)
listen(r0, 0x3)
accept4(r0, 0x0, 0x0, 0x800)

program did not crash
reproducing took 1h24m18.99063329s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0-rc7-syzkaller-00067-g76b6905c11fd #0
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:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d eb 52 a0 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 c8 45 8c 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc900001b7690 EFLAGS: 00010006
RAX: 000000000000004b RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000258
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2079f4f R12: ffff88801cab4880
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000258
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40f39530d0 CR3: 0000000054c8a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
 lock_sock_nested+0x48/0x100 net/core/sock.c:3662
 lock_sock include/net/sock.h:1624 [inline]
 l2cap_sock_ready_cb+0x47/0x140 net/bluetooth/l2cap_sock.c:1661
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1263 [inline]
 l2cap_conn_start+0x8e2/0x1150 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+0xabe/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd30 kernel/workqueue.c:3400
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d eb 52 a0 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 c8 45 8c 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc900001b7690 EFLAGS: 00010006
RAX: 000000000000004b RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000258
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2079f4f R12: ffff88801cab4880
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000258
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40f39530d0 CR3: 0000000054c8a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	b6 04                	mov    $0x4,%dh
   2:	30 84 c0 0f 85 f8 16 	xor    %al,0x16f8850f(%rax,%rax,8)
   9:	00 00                	add    %al,(%rax)
   b:	45 31 f6             	xor    %r14d,%r14d
   e:	83 3d eb 52 a0 0e 00 	cmpl   $0x0,0xea052eb(%rip)        # 0xea05300
  15:	0f 84 c8 13 00 00    	je     0x13e3
  1b:	89 54 24 60          	mov    %edx,0x60(%rsp)
  1f:	89 5c 24 38          	mov    %ebx,0x38(%rsp)
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 30 00          	cmpb   $0x0,(%rax,%rsi,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 c8 45 8c 00       	call   0x8c4600
  38:	48                   	rex.W
  39:	be 00 00 00 00       	mov    $0x0,%esi
  3e:	00 fc                	add    %bh,%ah

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0-rc7-syzkaller-00067-g76b6905c11fd #0
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:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d eb 52 a0 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 c8 45 8c 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc900001b7690 EFLAGS: 00010006
RAX: 000000000000004b RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000258
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2079f4f R12: ffff88801cab4880
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000258
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40f39530d0 CR3: 0000000054c8a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
 lock_sock_nested+0x48/0x100 net/core/sock.c:3662
 lock_sock include/net/sock.h:1624 [inline]
 l2cap_sock_ready_cb+0x47/0x140 net/bluetooth/l2cap_sock.c:1661
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1263 [inline]
 l2cap_conn_start+0x8e2/0x1150 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+0xabe/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd30 kernel/workqueue.c:3400
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d eb 52 a0 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 c8 45 8c 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc900001b7690 EFLAGS: 00010006
RAX: 000000000000004b RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000258
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2079f4f R12: ffff88801cab4880
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000258
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40f39530d0 CR3: 0000000054c8a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	b6 04                	mov    $0x4,%dh
   2:	30 84 c0 0f 85 f8 16 	xor    %al,0x16f8850f(%rax,%rax,8)
   9:	00 00                	add    %al,(%rax)
   b:	45 31 f6             	xor    %r14d,%r14d
   e:	83 3d eb 52 a0 0e 00 	cmpl   $0x0,0xea052eb(%rip)        # 0xea05300
  15:	0f 84 c8 13 00 00    	je     0x13e3
  1b:	89 54 24 60          	mov    %edx,0x60(%rsp)
  1f:	89 5c 24 38          	mov    %ebx,0x38(%rsp)
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 30 00          	cmpb   $0x0,(%rax,%rsi,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 c8 45 8c 00       	call   0x8c4600
  38:	48                   	rex.W
  39:	be 00 00 00 00       	mov    $0x0,%esi
  3e:	00 fc                	add    %bh,%ah