Extracting prog: 1m20.436201164s Minimizing prog: 12m26.313701824s Simplifying prog options: 0s Extracting C: 28.479520688s Simplifying C: 11m32.867802776s 10 programs, timeouts [15s 1m40s 6m0s] extracting reproducer from 10 programs single: executing 5 programs separately with timeout 15s testing program (duration=15s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-openat-syz_mount_image$fuse-mount$bind-mount$incfs-chdir-link detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0) syz_mount_image$fuse(0x0, &(0x7f0000001040)='./file2\x00', 0x0, 0x0, 0x0, 0x0, 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) chdir(&(0x7f0000000080)='./file0\x00') link(&(0x7f0000000080)='./file1\x00', &(0x7f0000000240)='./file2/file0\x00') program crashed: KASAN: null-ptr-deref Write in vfs_rmdir single: successfully extracted reproducer found reproducer with 7 syscalls minimizing guilty program testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-openat-syz_mount_image$fuse-mount$bind-mount$incfs-chdir detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0) syz_mount_image$fuse(0x0, &(0x7f0000001040)='./file2\x00', 0x0, 0x0, 0x0, 0x0, 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) chdir(&(0x7f0000000080)='./file0\x00') program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-openat-syz_mount_image$fuse-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0) syz_mount_image$fuse(0x0, &(0x7f0000001040)='./file2\x00', 0x0, 0x0, 0x0, 0x0, 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-openat-syz_mount_image$fuse-mount$bind detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0) syz_mount_image$fuse(0x0, &(0x7f0000001040)='./file2\x00', 0x0, 0x0, 0x0, 0x0, 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-openat-syz_mount_image$fuse-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0) syz_mount_image$fuse(0x0, &(0x7f0000001040)='./file2\x00', 0x0, 0x0, 0x0, 0x0, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-openat-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$bind-mount$incfs detailed listing: executing program 0: mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(0x0, 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount$bind(0x0, &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount$bind(&(0x7f00000002c0)='.\x00', 0x0, 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000340), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', 0x0, &(0x7f0000000340), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x101091, 0x0) mount$incfs(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir simplifying C reproducer testing compiled C program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program did not crash testing compiled C program (duration=22.5s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$bind-mount$incfs program crashed: KASAN: null-ptr-deref Write in vfs_rmdir reproducing took 25m48.097242631s repro crashed as (corrupted=false): RSP: 002b:00007ffd9ad6aa18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f71e3c749a7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9ad6aad0 RBP: 00007ffd9ad6aad0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd9ad6bb40 R13: 00005555558566c0 R14: 00007ffd9ad6bb40 R15: 0000000000000001 ---[ end trace 0000000000000000 ]--- ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:102 [inline] BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:198 [inline] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:452 Write of size 4 at addr 0000000000000170 by task syz-executor379/294 CPU: 1 PID: 294 Comm: syz-executor379 Tainted: G W 6.1.84-syzkaller-00005-g96d66062d076 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106 print_report+0xe1/0x4e0 mm/kasan/report.c:430 kasan_report+0x13c/0x170 mm/kasan/report.c:531 kasan_check_range+0x294/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:102 [inline] atomic_inc_return include/linux/atomic/atomic-instrumented.h:198 [inline] ihold+0x20/0x60 fs/inode.c:452 d_delete_notify include/linux/fsnotify.h:281 [inline] vfs_rmdir+0x268/0x500 fs/namei.c:4205 incfs_kill_sb+0x113/0x230 fs/incfs/vfs.c:1967 deactivate_locked_super+0xad/0x110 fs/super.c:334 deactivate_super+0xbe/0xf0 fs/super.c:365 cleanup_mnt+0x485/0x510 fs/namespace.c:1186 __cleanup_mnt+0x19/0x20 fs/namespace.c:1193 task_work_run+0x24d/0x2e0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x94/0xa0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f71e3c749a7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd9ad6aa18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f71e3c749a7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9ad6aad0 RBP: 00007ffd9ad6aad0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd9ad6bb40 R13: 00005555558566c0 R14: 00007ffd9ad6bb40 R15: 0000000000000001 ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000170 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 1 PID: 294 Comm: syz-executor379 Tainted: G B W 6.1.84-syzkaller-00005-g96d66062d076 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:440 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:199 [inline] RIP: 0010:ihold+0x25/0x60 fs/inode.c:452 Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 71 d1 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 10 e0 ef ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 f4 d4 a8 RSP: 0018:ffffc90000df7c30 EFLAGS: 00010246 RAX: ffff88811b898000 RBX: 0000000000000001 RCX: ffff88811b898000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000df7c40 R08: ffffffff81447283 R09: fffffbfff0f264fd R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110231dd014 R13: ffff888120037bb0 R14: 0000000000000000 R15: 1ffff11024006f7c FS: 0000555555855380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000170 CR3: 0000000100834000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_delete_notify include/linux/fsnotify.h:281 [inline] vfs_rmdir+0x268/0x500 fs/namei.c:4205 incfs_kill_sb+0x113/0x230 fs/incfs/vfs.c:1967 deactivate_locked_super+0xad/0x110 fs/super.c:334 deactivate_super+0xbe/0xf0 fs/super.c:365 cleanup_mnt+0x485/0x510 fs/namespace.c:1186 __cleanup_mnt+0x19/0x20 fs/namespace.c:1193 task_work_run+0x24d/0x2e0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x94/0xa0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f71e3c749a7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd9ad6aa18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f71e3c749a7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9ad6aad0 RBP: 00007ffd9ad6aad0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd9ad6bb40 R13: 00005555558566c0 R14: 00007ffd9ad6bb40 R15: 0000000000000001 Modules linked in: CR2: 0000000000000170 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:440 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:199 [inline] RIP: 0010:ihold+0x25/0x60 fs/inode.c:452 Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 71 d1 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 10 e0 ef ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 f4 d4 a8 RSP: 0018:ffffc90000df7c30 EFLAGS: 00010246 RAX: ffff88811b898000 RBX: 0000000000000001 RCX: ffff88811b898000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000df7c40 R08: ffffffff81447283 R09: fffffbfff0f264fd R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110231dd014 R13: ffff888120037bb0 R14: 0000000000000000 R15: 1ffff11024006f7c FS: 0000555555855380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000170 CR3: 0000000100834000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 00 55 48 add %dl,0x48(%rbp) 7: 89 e5 mov %esp,%ebp 9: 41 56 push %r14 b: 53 push %rbx c: 49 89 fe mov %rdi,%r14 f: e8 71 d1 a8 ff call 0xffa8d185 14: 49 8d be 70 01 00 00 lea 0x170(%r14),%rdi 1b: be 04 00 00 00 mov $0x4,%esi 20: e8 10 e0 ef ff call 0xffefe035 25: bb 01 00 00 00 mov $0x1,%ebx * 2a: f0 41 0f c1 9e 70 01 lock xadd %ebx,0x170(%r14) <-- trapping instruction 31: 00 00 33: ff c3 inc %ebx 35: bf 02 00 00 00 mov $0x2,%edi 3a: 89 de mov %ebx,%esi 3c: e8 .byte 0xe8 3d: f4 hlt 3e: d4 (bad) 3f: a8 .byte 0xa8 final repro crashed as (corrupted=false): RSP: 002b:00007ffd9ad6aa18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f71e3c749a7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9ad6aad0 RBP: 00007ffd9ad6aad0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd9ad6bb40 R13: 00005555558566c0 R14: 00007ffd9ad6bb40 R15: 0000000000000001 ---[ end trace 0000000000000000 ]--- ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:102 [inline] BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:198 [inline] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:452 Write of size 4 at addr 0000000000000170 by task syz-executor379/294 CPU: 1 PID: 294 Comm: syz-executor379 Tainted: G W 6.1.84-syzkaller-00005-g96d66062d076 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106 print_report+0xe1/0x4e0 mm/kasan/report.c:430 kasan_report+0x13c/0x170 mm/kasan/report.c:531 kasan_check_range+0x294/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:102 [inline] atomic_inc_return include/linux/atomic/atomic-instrumented.h:198 [inline] ihold+0x20/0x60 fs/inode.c:452 d_delete_notify include/linux/fsnotify.h:281 [inline] vfs_rmdir+0x268/0x500 fs/namei.c:4205 incfs_kill_sb+0x113/0x230 fs/incfs/vfs.c:1967 deactivate_locked_super+0xad/0x110 fs/super.c:334 deactivate_super+0xbe/0xf0 fs/super.c:365 cleanup_mnt+0x485/0x510 fs/namespace.c:1186 __cleanup_mnt+0x19/0x20 fs/namespace.c:1193 task_work_run+0x24d/0x2e0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x94/0xa0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f71e3c749a7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd9ad6aa18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f71e3c749a7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9ad6aad0 RBP: 00007ffd9ad6aad0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd9ad6bb40 R13: 00005555558566c0 R14: 00007ffd9ad6bb40 R15: 0000000000000001 ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000170 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 1 PID: 294 Comm: syz-executor379 Tainted: G B W 6.1.84-syzkaller-00005-g96d66062d076 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:440 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:199 [inline] RIP: 0010:ihold+0x25/0x60 fs/inode.c:452 Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 71 d1 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 10 e0 ef ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 f4 d4 a8 RSP: 0018:ffffc90000df7c30 EFLAGS: 00010246 RAX: ffff88811b898000 RBX: 0000000000000001 RCX: ffff88811b898000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000df7c40 R08: ffffffff81447283 R09: fffffbfff0f264fd R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110231dd014 R13: ffff888120037bb0 R14: 0000000000000000 R15: 1ffff11024006f7c FS: 0000555555855380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000170 CR3: 0000000100834000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_delete_notify include/linux/fsnotify.h:281 [inline] vfs_rmdir+0x268/0x500 fs/namei.c:4205 incfs_kill_sb+0x113/0x230 fs/incfs/vfs.c:1967 deactivate_locked_super+0xad/0x110 fs/super.c:334 deactivate_super+0xbe/0xf0 fs/super.c:365 cleanup_mnt+0x485/0x510 fs/namespace.c:1186 __cleanup_mnt+0x19/0x20 fs/namespace.c:1193 task_work_run+0x24d/0x2e0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x94/0xa0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f71e3c749a7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd9ad6aa18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f71e3c749a7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9ad6aad0 RBP: 00007ffd9ad6aad0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd9ad6bb40 R13: 00005555558566c0 R14: 00007ffd9ad6bb40 R15: 0000000000000001 Modules linked in: CR2: 0000000000000170 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:440 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:199 [inline] RIP: 0010:ihold+0x25/0x60 fs/inode.c:452 Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 71 d1 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 10 e0 ef ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 f4 d4 a8 RSP: 0018:ffffc90000df7c30 EFLAGS: 00010246 RAX: ffff88811b898000 RBX: 0000000000000001 RCX: ffff88811b898000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000df7c40 R08: ffffffff81447283 R09: fffffbfff0f264fd R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110231dd014 R13: ffff888120037bb0 R14: 0000000000000000 R15: 1ffff11024006f7c FS: 0000555555855380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000170 CR3: 0000000100834000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 00 55 48 add %dl,0x48(%rbp) 7: 89 e5 mov %esp,%ebp 9: 41 56 push %r14 b: 53 push %rbx c: 49 89 fe mov %rdi,%r14 f: e8 71 d1 a8 ff call 0xffa8d185 14: 49 8d be 70 01 00 00 lea 0x170(%r14),%rdi 1b: be 04 00 00 00 mov $0x4,%esi 20: e8 10 e0 ef ff call 0xffefe035 25: bb 01 00 00 00 mov $0x1,%ebx * 2a: f0 41 0f c1 9e 70 01 lock xadd %ebx,0x170(%r14) <-- trapping instruction 31: 00 00 33: ff c3 inc %ebx 35: bf 02 00 00 00 mov $0x2,%edi 3a: 89 de mov %ebx,%esi 3c: e8 .byte 0xe8 3d: f4 hlt 3e: d4 (bad) 3f: a8 .byte 0xa8