Extracting prog: 3m15.486637425s Minimizing prog: 56m45.030774678s Simplifying prog options: 0s Extracting C: 44.588160164s Simplifying C: 10m41.914018229s 1 programs, timeouts [30s 6m0s] 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}}): mknodat-pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) r2 = dup(r1) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r2}, 0x2c, {[{@cache_fscache}]}}) 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}}): mknodat-pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) r2 = dup(r1) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r2}, 0x2c, {[{@cache_fscache}]}}) program crashed: WARNING in p9_client_create single: successfully extracted reproducer found reproducer with 4 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}}): mknodat-pipe2$9p-dup detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) dup(r0) 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}}): mknodat-pipe2$9p-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {}, 0x2c, {[{@cache_fscache}]}}) 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}}): mknodat-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) r0 = dup(0xffffffffffffffff) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@cache_fscache}]}}) 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}}): pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) r2 = dup(r1) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r2}, 0x2c, {[{@cache_fscache}]}}) 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}}): mknodat-pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, 0x0, 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) r2 = dup(r1) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r2}, 0x2c, {[{@cache_fscache}]}}) 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}}): mknodat-pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(0x0, 0x0) r0 = dup(0xffffffffffffffff) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@cache_fscache}]}}) 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}}): mknodat-pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) r2 = dup(r1) mount$9p_fd(0x0, 0x0, &(0x7f0000000080), 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r2}, 0x2c, {[{@cache_fscache}]}}) 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}}): mknodat-pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) r2 = dup(r1) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', 0x0, 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r2}, 0x2c, {[{@cache_fscache}]}}) 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}}): mknodat-pipe2$9p-dup-mount$9p_fd detailed listing: executing program 0: mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) dup(r0) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000080), 0x0, 0x0) 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}}): mknodat-pipe2$9p-dup-mount$9p_fd program crashed: WARNING in p9_client_create simplifying 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}}): mknodat-pipe2$9p-dup-mount$9p_fd program crashed: WARNING in p9_client_create 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mknodat-pipe2$9p-dup-mount$9p_fd 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:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mknodat-pipe2$9p-dup-mount$9p_fd program crashed: WARNING in p9_client_create testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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}}): mknodat-pipe2$9p-dup-mount$9p_fd program crashed: WARNING in p9_client_create testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mknodat-pipe2$9p-dup-mount$9p_fd program crashed: WARNING in p9_client_create testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mknodat-pipe2$9p-dup-mount$9p_fd program crashed: WARNING in p9_client_create testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mknodat-pipe2$9p-dup-mount$9p_fd program crashed: WARNING in p9_client_create reproducing took 1h11m27.019613889s repro crashed as (corrupted=false): ------------[ cut here ]------------ kmem_cache of name '9p-fcall-cache' already exists WARNING: CPU: 0 PID: 5103 at mm/slab_common.c:108 kmem_cache_sanity_check mm/slab_common.c:107 [inline] WARNING: CPU: 0 PID: 5103 at mm/slab_common.c:108 __kmem_cache_create_args+0xa7/0x350 mm/slab_common.c:294 Modules linked in: CPU: 0 UID: 0 PID: 5103 Comm: syz-executor184 Not tainted 6.12.0-rc2-syzkaller-00291-g09f6b0c8904b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:kmem_cache_sanity_check mm/slab_common.c:107 [inline] RIP: 0010:__kmem_cache_create_args+0xa7/0x350 mm/slab_common.c:294 Code: 8e 48 8b 1b 48 39 eb 74 25 48 8b 7b f8 4c 89 fe e8 ee 31 e1 09 85 c0 75 e8 90 48 c7 c7 d5 5d 0b 8e 4c 89 fe e8 2a 8d 78 ff 90 <0f> 0b 90 90 4c 89 ff be 20 00 00 00 e8 48 33 e1 09 48 85 c0 0f 85 RSP: 0018:ffffc90002eaf788 EFLAGS: 00010246 RAX: 142228581c531d00 RBX: ffff88803dd41428 RCX: ffff888000312440 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8ea1f9c0 R08: ffffffff8155e402 R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 0000000000020018 R13: 0000000000000000 R14: ffffc90002eaf860 R15: ffffffff8d2deb20 FS: 00005555916c8380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe2dc53988 CR3: 0000000040b4a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmem_cache_create_usercopy include/linux/slab.h:361 [inline] p9_client_create+0xba5/0x1110 net/9p/client.c:1042 v9fs_session_init+0x1e4/0x1b80 fs/9p/v9fs.c:410 v9fs_mount+0xcf/0xaa0 fs/9p/vfs_super.c:122 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc2e57bcea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffefdae57d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc2e580604e RCX: 00007fc2e57bcea9 RDX: 0000000020000080 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 00000000000f4240 R08: 0000000020000100 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffefdae59f8 R14: 00007ffefdae5800 R15: 00007ffefdae57f0 final repro crashed as (corrupted=false): ------------[ cut here ]------------ kmem_cache of name '9p-fcall-cache' already exists WARNING: CPU: 0 PID: 5103 at mm/slab_common.c:108 kmem_cache_sanity_check mm/slab_common.c:107 [inline] WARNING: CPU: 0 PID: 5103 at mm/slab_common.c:108 __kmem_cache_create_args+0xa7/0x350 mm/slab_common.c:294 Modules linked in: CPU: 0 UID: 0 PID: 5103 Comm: syz-executor184 Not tainted 6.12.0-rc2-syzkaller-00291-g09f6b0c8904b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:kmem_cache_sanity_check mm/slab_common.c:107 [inline] RIP: 0010:__kmem_cache_create_args+0xa7/0x350 mm/slab_common.c:294 Code: 8e 48 8b 1b 48 39 eb 74 25 48 8b 7b f8 4c 89 fe e8 ee 31 e1 09 85 c0 75 e8 90 48 c7 c7 d5 5d 0b 8e 4c 89 fe e8 2a 8d 78 ff 90 <0f> 0b 90 90 4c 89 ff be 20 00 00 00 e8 48 33 e1 09 48 85 c0 0f 85 RSP: 0018:ffffc90002eaf788 EFLAGS: 00010246 RAX: 142228581c531d00 RBX: ffff88803dd41428 RCX: ffff888000312440 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8ea1f9c0 R08: ffffffff8155e402 R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 0000000000020018 R13: 0000000000000000 R14: ffffc90002eaf860 R15: ffffffff8d2deb20 FS: 00005555916c8380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe2dc53988 CR3: 0000000040b4a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmem_cache_create_usercopy include/linux/slab.h:361 [inline] p9_client_create+0xba5/0x1110 net/9p/client.c:1042 v9fs_session_init+0x1e4/0x1b80 fs/9p/v9fs.c:410 v9fs_mount+0xcf/0xaa0 fs/9p/vfs_super.c:122 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc2e57bcea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffefdae57d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc2e580604e RCX: 00007fc2e57bcea9 RDX: 0000000020000080 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 00000000000f4240 R08: 0000000020000100 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffefdae59f8 R14: 00007ffefdae5800 R15: 00007ffefdae57f0