Extracting prog: 6m40.236061426s Minimizing prog: 25m53.148304791s Simplifying prog options: 0s Extracting C: 1m36.831647788s Simplifying C: 8m44.938340981s extracting reproducer from 19 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 45s testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) ioctl$COMEDI_INSN(r0, 0x8028640c, &(0x7f0000000000)={0x4000000, 0xf, &(0x7f0000000080)=[0x3, 0xfff, 0x4, 0xb, 0x663, 0x4, 0xe0, 0xfffffff7, 0x9, 0xf6, 0xffffffff, 0x2, 0x200, 0x4, 0x6], 0x3}) program did not crash single: failed to extract reproducer bisect: bisecting 19 programs with base timeout 45s testing program (duration=49s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [9, 10, 7, 3, 13, 19, 19, 3, 4, 2, 21, 6, 10, 10, 5, 7, 6, 6, 3] detailed listing: executing program 1: r0 = socket$inet_udp(0x2, 0x2, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3, 0x8031, 0xffffffffffffffff, 0x6a855000) madvise(&(0x7f0000000000/0x600000)=nil, 0x600002, 0x9) bind$inet(r0, &(0x7f0000000040)={0x2, 0x4e20, @empty}, 0x10) syz_emit_ethernet(0xbe, &(0x7f0000000000)={@dev={'\xaa\xaa\xaa\xaa\xaa', 0x23}, @link_local, @void, {@ipv4={0x800, @udp={{0x5, 0x4, 0x0, 0x0, 0xb0, 0x0, 0x0, 0x0, 0x11, 0x0, @empty, @empty}, {0x0, 0x4e20, 0x9c, 0x0, @wg=@initiation={0x1, 0x0, "7b4b143b7461fd777b1c012bd14efb9f49fcdb8f080c26a04883ad5c8c82b8af", "584cbf2649a50f2dbc43efa8698d0a881c51852e4451b57d037ad3c045942824251d7d17b5191584bcd4fbe40a23424d", "bcfd56f1375461caaa2f19935e6996c7096ffeeb0300000000000064", {"9a3bfbc1f39cb307b3472eb9cdb042d2", "643fcbb2c5a57df67d544af6e8dafe09"}}}}}}}, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000140)={0x6, 0x3, &(0x7f0000000680)=ANY=[@ANYBLOB="1800000002000000000000000000000095"], 0x0, 0x3, 0x0, 0x0, 0x41000}, 0x94) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x3, &(0x7f0000000680)=ANY=[], &(0x7f00000002c0)='syzkaller\x00', 0x7}, 0x94) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000600)={r1, 0x5, 0xb68, 0x0, &(0x7f0000000000)='%', 0x0, 0xd01, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0x48) recvmmsg(r0, &(0x7f0000002a40)=[{{0x0, 0x0, &(0x7f0000002600)=[{&(0x7f00000013c0)=""/50, 0x32}, {&(0x7f0000001400)=""/226, 0xe2}], 0x2}, 0x5}], 0x1, 0x10000, 0x0) executing program 1: r0 = socket(0xa, 0x1, 0x0) bind$inet6(r0, &(0x7f0000000140)={0xa, 0xe64, 0xb, @empty, 0x5}, 0x1c) bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000240)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x68, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000001e80)=ANY=[@ANYBLOB="0b000000080000000c000000ffffffff01"], 0x48) bpf$MAP_UPDATE_BATCH(0x1a, &(0x7f0000000340)={0x0, 0x0, &(0x7f00000000c0), &(0x7f0000000140), 0x5, r1}, 0x38) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0x18, 0xd, &(0x7f0000000240)=ANY=[@ANYBLOB="18000000000000000000000000000000850000006d00000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000010b704000000000000850000000100000095"], &(0x7f0000000000)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x1c, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000001c0)={&(0x7f0000000140)='kmem_cache_free\x00', r2, 0x0, 0x2}, 0x18) sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000200)={&(0x7f0000000340)='kfree\x00', 0xffffffffffffffff, 0x0, 0xffffffffffffffff}, 0x18) sendto$inet6(r0, 0x0, 0x0, 0x20000081, &(0x7f0000000100)={0xa, 0x4e24, 0x5, @loopback, 0x7fffffff}, 0x1c) executing program 1: r0 = openat$selinux_load(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x11, 0x8, 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&(0x7f0000000100)='GPL\x00'}, 0x41) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000200)={&(0x7f0000000340)='kfree\x00', r1}, 0x10) prctl$PR_SET_NAME(0xf, &(0x7f0000000280)='+}[@\x00') r2 = openat$selinux_policy(0xffffff9c, &(0x7f0000000300), 0x0, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x100000a, 0x12, r2, 0x0) write$selinux_load(r0, &(0x7f0000000000)=ANY=[], 0xffa8) executing program 1: timer_create(0x8, &(0x7f00000002c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000100)=0x0) timer_settime(0x0, 0x0, &(0x7f0000000040)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) timer_delete(r0) executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) r0 = bpf$MAP_CREATE(0x0, &(0x7f00000007c0)=ANY=[@ANYBLOB="0e000000040000000800000008"], 0x48) bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b704000000000000850000000100000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x28, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000500)={0x11, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000240)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xf, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) timerfd_create(0x7, 0x80000) bpf$PROG_LOAD(0x5, &(0x7f0000000040)={0x2, 0x4, &(0x7f0000000200)=ANY=[@ANYBLOB="180000000300000000000000fe020010850000000700000095"], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x100, 0x70, '\x00', 0x0, @fallback=0x30, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) r2 = bpf$MAP_CREATE(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="19000000040000000400000005"], 0x48) bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r2, @ANYBLOB="0000000000000000b70800000000e7"], &(0x7f0000000380)='GPL\x00', 0x10000, 0x0, 0x0, 0x0, 0x31, '\x00', 0x0, @fallback=0x2c, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000100)='net_dev_xmit\x00', r1}, 0x10) r3 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000240)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000100)='net_dev_xmit\x00', r3}, 0x10) r4 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0xc, 0xe, &(0x7f0000000640)=ANY=[@ANYBLOB="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"/2566], &(0x7f0000000340)='syzkaller\x00'}, 0x48) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000080)={r4, 0x18000000000002a0, 0xe40, 0x0, &(0x7f0000000100)="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", 0x0, 0x8, 0x60000000}, 0x1e) executing program 1: r0 = bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB="02000000040000000404000009"], 0x50) prlimit64(0x0, 0xe, &(0x7f0000000240)={0x8, 0x248}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f00000004c0)=@abs, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x3fffffffffffeda, 0x2, 0x0) r4 = bpf$MAP_CREATE(0x0, &(0x7f0000000380)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x48) r5 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xf, &(0x7f00000003c0)=ANY=[@ANYBLOB="18000000000f0000000000000c00000018110000", @ANYRES32=r4, @ANYBLOB="0000000000000000b702000014000200b7030000000000008500000083000000bf0900000000000055090100000000009500000000000000bf91000000000000b7020000000000008500000084000000b70000000000000095"], &(0x7f0000000200)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000740)={&(0x7f00000006c0)='sched_switch\x00', r5}, 0x10) bpf$PROG_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0) unshare(0x64000600) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0d00000003000000040000000108000001000000", @ANYRES32=r0, @ANYBLOB="b41500"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="000100fdff"], 0x50) executing program 32: r0 = bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB="02000000040000000404000009"], 0x50) prlimit64(0x0, 0xe, &(0x7f0000000240)={0x8, 0x248}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f00000004c0)=@abs, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x3fffffffffffeda, 0x2, 0x0) r4 = bpf$MAP_CREATE(0x0, &(0x7f0000000380)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x48) r5 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xf, &(0x7f00000003c0)=ANY=[@ANYBLOB="18000000000f0000000000000c00000018110000", @ANYRES32=r4, @ANYBLOB="0000000000000000b702000014000200b7030000000000008500000083000000bf0900000000000055090100000000009500000000000000bf91000000000000b7020000000000008500000084000000b70000000000000095"], &(0x7f0000000200)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000740)={&(0x7f00000006c0)='sched_switch\x00', r5}, 0x10) bpf$PROG_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0) unshare(0x64000600) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0d00000003000000040000000108000001000000", @ANYRES32=r0, @ANYBLOB="b41500"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="000100fdff"], 0x50) executing program 2: r0 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, &(0x7f0000000480)=ANY=[@ANYBLOB="18060000000000000000000000000000180100002020702500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000003000000b703000000000000850000007300000095"], &(0x7f0000000200)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000600)={&(0x7f0000000080)='sys_enter\x00', r0}, 0x10) ioprio_get$pid(0x3, 0x0) executing program 2: prctl$PR_SET_NAME(0xf, &(0x7f0000000140)='+}[@\x00') r0 = bpf$PROG_LOAD(0x5, &(0x7f00000193c0)={0x11, 0x13, &(0x7f0000019300)=ANY=[@ANYBLOB="1800000000000000000000000000000018010000206a932500000000002000007b1af8ff00000000bfa100000000000007010000f8ffffffb702000008000000b70300000000000085000000100000001801000020786c2500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000008000000b703000000000000850000001000000095"], &(0x7f0000000240)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000600)={&(0x7f0000000000)='sys_enter\x00', r0, 0x0, 0x91}, 0x18) fchmod(0xffffffffffffffff, 0x8) executing program 2: r0 = socket$inet_udp(0x2, 0x2, 0x0) getsockopt$EBT_SO_GET_INFO(r0, 0x0, 0x80, &(0x7f0000000040)={'filter\x00', 0x0, 0x0, 0x0, [0x4, 0x6, 0x0, 0x5, 0x8, 0x6]}, &(0x7f00000000c0)=0x78) executing program 2: bpf$MAP_CREATE(0x0, &(0x7f00000008c0)=ANY=[@ANYBLOB="0700000004000000000100000104000028000000", @ANYRES32, @ANYBLOB='\x00'/20, @ANYRES32, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00)\x00'/28], 0x50) timer_create(0x0, 0x0, &(0x7f0000000100)) r0 = socket(0x10, 0x3, 0x0) r1 = syz_io_uring_setup(0x304, &(0x7f0000000300)={0x0, 0x8006d85, 0x400, 0x2, 0x200118}, 0x0, &(0x7f0000000100)) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x200000000000008b}, 0x0) r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000280)=ANY=[@ANYBLOB="07000000040000000802000021"], 0x50) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000680)={0x11, 0x8, &(0x7f0000000740)=ANY=[@ANYBLOB="1800000000000000000000000000000018120000", @ANYRES32=r2, @ANYBLOB="0000000000000000b703000000008600850000001b000000b70000000000000095"], &(0x7f0000000780)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f0000000080)='sched_switch\x00', r3}, 0x18) sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x8) r4 = getpid() sched_setscheduler(r4, 0x2, &(0x7f0000000000)=0x7) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r5, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r6, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r5, &(0x7f00000000c0), 0x10106, 0x2, 0x0) io_uring_enter(r1, 0x8aa, 0x0, 0x0, 0x0, 0x0) write(r0, &(0x7f0000000080)="1400000052004f030e789e7ee2ce2fa4ff612d27", 0x14) recvmmsg(r0, 0x0, 0x0, 0x10122, 0x0) r7 = openat$sndseq(0xffffffffffffff9c, &(0x7f00000000c0), 0x62181) ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(r7, 0xc08c5332, &(0x7f00000001c0)={0x0, 0x0, 0x0, 'queue0\x00'}) executing program 0: bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000000)={0xffffffffffffffff, 0x2000000, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x2}, 0x50) ioctl$FBIOPUT_VSCREENINFO(0xffffffffffffffff, 0x4601, &(0x7f0000000100)={0x400, 0x300, 0x3c0, 0x0, 0x0, 0x0, 0x0, 0x0, {}, {0x457}, {}, {0x0, 0xc}, 0x0, 0x3f0, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3ff, 0x2d, 0x2, 0x0, 0x5}) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ff1000/0xf000)=nil, &(0x7f0000ff1000/0x2000)=nil, &(0x7f0000ff5000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x24004045) r0 = io_uring_setup(0x4fee, &(0x7f0000000040)={0x0, 0x3cb1, 0x1c080, 0xa, 0x20002f7}) io_uring_enter(r0, 0x2219, 0x7721, 0x16, 0x0, 0x0) executing program 0: mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup/syz0\x00', 0x1ff) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) r1 = openat$cgroup_type(r0, &(0x7f0000000100), 0x2, 0x0) write$cgroup_type(r1, &(0x7f0000000280), 0x9) r2 = openat$cgroup_procs(r0, &(0x7f00000002c0)='cgroup.threads\x00', 0x2, 0x0) write$cgroup_pid(r2, &(0x7f0000000c40), 0x12) r3 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) syz_clone(0x1022000, 0x0, 0xfffffffffffffc76, 0x0, 0x0, 0x0) r4 = openat$cgroup_ro(r3, &(0x7f0000000040)='cgroup.freeze\x00', 0x275a, 0x0) write$cgroup_int(r4, &(0x7f0000000200)=0x1, 0x12) executing program 0: r0 = socket(0x28, 0x5, 0x0) r1 = socket(0x28, 0x5, 0x0) bind$vsock_stream(r1, &(0x7f0000000040)={0x28, 0x0, 0x0, @local}, 0x10) listen(r1, 0x4) connect$vsock_stream(r0, &(0x7f0000000080), 0x10) r2 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000480)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000850000005000000095"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x2}, 0x94) close(r2) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000100)={0x18, 0x6, &(0x7f00000001c0)=ANY=[@ANYBLOB="180000000000000000000000ffffff80e500020000000000c500fcff000000007f00feffd100000095"], &(0x7f00000000c0)='GPL\x00', 0x5, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x4}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='virtio_transport_alloc_pkt\x00', r2}, 0x18) sendmmsg(r0, &(0x7f0000000b40)=[{{0x0, 0x0, &(0x7f00000003c0)=[{&(0x7f0000000380)="1b", 0x1}], 0x1}}], 0x1, 0x0) executing program 0: openat$iommufd(0xffffffffffffff9c, 0x0, 0x0, 0x0) r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$NL80211_CMD_NEW_KEY(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000000)={0x1c, 0x0, 0x0, 0x0, 0x0, {{}, {@val={0x8}, @void}}}, 0x1c}}, 0x0) ioctl$sock_SIOCBRDELBR(r0, 0x89a2, &(0x7f0000000000)='bridge0\x00') syz_emit_ethernet(0x22, &(0x7f0000000080)={@local, @random="429e82211cf8", @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x2, 0x0, 0x14, 0x65, 0x0, 0x2, 0x6c, 0x0, @rand_addr=0x64010100, @broadcast}}}}}, 0x0) executing program 2: socket$igmp(0x2, 0x3, 0x2) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) r0 = io_uring_setup(0x56ab, &(0x7f0000000040)={0x0, 0x36e, 0xc000, 0xc, 0xa0002f5}) bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x2e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) setsockopt$sock_int(0xffffffffffffffff, 0x1, 0x2, &(0x7f0000000000)=0x2200a, 0x4) io_uring_enter(r0, 0x2216, 0x7721, 0x16, 0x0, 0x3b) executing program 0: sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000000)="2e00000010008188e6b62aa73f", 0xd}], 0x1}, 0x0) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) r0 = io_uring_setup(0x4, &(0x7f0000000040)={0x0, 0xc89e, 0xc000, 0x8, 0x20002f7}) sendmsg$nl_route(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0) io_uring_enter(r0, 0x221a, 0x7721, 0x16, 0x0, 0x0) executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) r1 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f00000044c0)={&(0x7f0000000100)={0x50, 0x2, 0x6, 0x801, 0x0, 0x0, {}, [@IPSET_ATTR_FAMILY={0x5, 0x5, 0xa}, @IPSET_ATTR_PROTOCOL={0x5}, @IPSET_ATTR_REVISION={0x5}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz1\x00'}, @IPSET_ATTR_TYPENAME={0x16, 0x3, 'hash:net,port,net\x00'}]}, 0x50}}, 0x0) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_ADD(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000100)={0x6c, 0x9, 0x6, 0x201, 0x0, 0x0, {0x3}, [@IPSET_ATTR_SETNAME={0x9, 0x2, 'syz1\x00'}, @IPSET_ATTR_PROTOCOL={0x5}, @IPSET_ATTR_DATA={0x44, 0x7, 0x0, 0x1, [@IPSET_ATTR_IP={0x18, 0x1, 0x0, 0x1, @IPSET_ATTR_IPADDR_IPV6={0x14, 0x2, 0x1, 0x0, @local}}, @IPSET_ATTR_IP2={0x18, 0x14, 0x0, 0x1, @IPSET_ATTR_IPADDR_IPV6={0x14, 0x2, 0x1, 0x0, @private0}}, @IPSET_ATTR_PORT={0x6, 0x4, 0x1, 0x0, 0x4e1f}, @IPSET_ATTR_PROTO={0x5, 0x7, 0x84}]}]}, 0x6c}, 0x1, 0x0, 0x0, 0x10040003}, 0x0) sendmsg$IPSET_CMD_FLUSH(r0, &(0x7f0000005a40)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000300)={0x1c, 0x4, 0x6, 0x5, 0x0, 0x0, {0x7, 0x0, 0x7}, [@IPSET_ATTR_PROTOCOL={0x5}]}, 0x1c}, 0x1, 0x0, 0x0, 0x51}, 0x0) executing program 2: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) ioctl$COMEDI_INSN(r0, 0x8028640c, &(0x7f0000000000)={0x4000000, 0xf, &(0x7f0000000080)=[0x3, 0xfff, 0x4, 0xb, 0x663, 0x4, 0xe0, 0xfffffff7, 0x9, 0xf6, 0xffffffff, 0x2, 0x200, 0x4, 0x6], 0x3}) program did not crash replaying the whole log did not cause a kernel crash single: executing 1 programs separately with timeout 5m0s testing program (duration=5m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) ioctl$COMEDI_INSN(r0, 0x8028640c, &(0x7f0000000000)={0x4000000, 0xf, &(0x7f0000000080)=[0x3, 0xfff, 0x4, 0xb, 0x663, 0x4, 0xe0, 0xfffffff7, 0x9, 0xf6, 0xffffffff, 0x2, 0x200, 0x4, 0x6], 0x3}) program crashed: BUG: unable to handle kernel paging request in parport_attach single: successfully extracted reproducer found reproducer with 3 syscalls minimizing guilty program testing program (duration=5m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) program crashed: BUG: unable to handle kernel paging request in parport_attach testing program (duration=5m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi detailed listing: executing program 0: openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) program did not crash testing program (duration=5m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$COMEDI_DEVCONFIG detailed listing: executing program 0: ioctl$COMEDI_DEVCONFIG(0xffffffffffffffff, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) program did not crash testing program (duration=5m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, 0x0, 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) program did not crash testing program (duration=5m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=5m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG program crashed: BUG: unable to handle kernel paging request in parport_attach simplifying C reproducer testing compiled C program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG program crashed: BUG: unable to handle kernel paging request in parport_attach testing compiled C program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG program crashed: BUG: unable to handle kernel paging request in parport_attach testing compiled C program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG program crashed: BUG: unable to handle kernel paging request in parport_attach testing compiled C program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG program crashed: BUG: unable to handle kernel paging request in parport_attach testing compiled C program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG program crashed: BUG: unable to handle kernel paging request in parport_attach testing compiled C program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG program crashed: BUG: unable to handle kernel paging request in parport_attach testing program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) program crashed: BUG: unable to handle kernel paging request in parport_attach validation run: crashed=true testing program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) program crashed: BUG: unable to handle kernel paging request in parport_attach validation run: crashed=true testing program (duration=5m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG detailed listing: executing program 0: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi1\x00', 0x2180, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000300)={'comedi_parport\x00', [0x2f00, 0x5, 0xd09a, 0xffffffff, 0x3, 0xfffffffe, 0x20000004, 0x3, 0xffe, 0x7fffffff, 0xc, 0x2, 0x4, 0x8, 0xffff, 0x6, 0x5, 0x7ff, 0x830, 0x8, 0x10000, 0x9, 0x800, 0x101, 0x2, 0x8001, 0x7, 0x3, 0x4, 0x5, 0x70f]}) program crashed: BUG: unable to handle kernel paging request in parport_attach validation run: crashed=true reproducing took 51m12.712350527s repro crashed as (corrupted=false): 8<--- cut here --- Unable to handle kernel paging request at virtual address fee02f00 when write [fee02f00] *pgd=80000080007003, *pmd=00000000 Internal error: Oops: a06 [#1] SMP ARM Modules linked in: CPU: 1 UID: 0 PID: 4147 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_writeb arch/arm/include/asm/io.h:88 [inline] PC is at parport_attach drivers/comedi/drivers/comedi_parport.c:289 [inline] PC is at parport_attach+0x174/0x1d0 drivers/comedi/drivers/comedi_parport.c:224 LR is at parport_attach drivers/comedi/drivers/comedi_parport.c:289 [inline] LR is at parport_attach+0x164/0x1d0 drivers/comedi/drivers/comedi_parport.c:224 pc : [<813cb760>] lr : [<813cb750>] psr: 60000013 sp : e0401d30 ip : e0401d30 fp : e0401d54 r10: 82b24908 r9 : 00000003 r8 : 8415a3c0 r7 : e0401d90 r6 : 8415a3c0 r5 : 00000000 r4 : 00000000 r3 : fee02f00 r2 : 81e1765c r1 : 00000001 r0 : 813cb3d0 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 855cdac0 DAC: 00000000 Register r0 information: non-slab/vmalloc memory Register r1 information: non-paged memory Register r2 information: non-slab/vmalloc memory Register r3 information: 0-page vmalloc region starting at 0xfee00000 allocated at pci_reserve_io+0x0/0x38 arch/arm/mm/mmu.c:1055 Register r4 information: NULL pointer Register r5 information: NULL pointer Register r6 information: slab kmalloc-192 start 8415a3c0 pointer offset 0 size 192 Register r7 information: 2-page vmalloc region starting at 0xe0400000 allocated at kernel_clone+0xac/0x3ec kernel/fork.c:2609 Register r8 information: slab kmalloc-192 start 8415a3c0 pointer offset 0 size 192 Register r9 information: non-paged memory Register r10 information: non-slab/vmalloc memory Register r11 information: 2-page vmalloc region starting at 0xe0400000 allocated at kernel_clone+0xac/0x3ec kernel/fork.c:2609 Register r12 information: 2-page vmalloc region starting at 0xe0400000 allocated at kernel_clone+0xac/0x3ec kernel/fork.c:2609 Process syz.2.17 (pid: 4147, stack limit = 0xe0400000) Stack: (0xe0401d30 to 0xe0402000) 1d20: 823ecc98 8415a3c0 829d1b3c 829d1b3c 1d40: 81e17b1c 8415a404 e0401d8c e0401d58 813c77ec 813cb5f8 20000300 00000000 1d60: e0401d7c 20000300 8415a3c0 b5403587 20000300 840abc00 40946400 00000001 1d80: e0401e4c e0401d90 813c3338 813c76f0 656d6f63 705f6964 6f707261 00007472 1da0: 00000000 00002f00 00000005 0000d09a ffffffff 00000003 fffffffe 20000004 1dc0: 00000003 00000ffe 7fffffff 0000000c 00000002 00000004 00000008 0000ffff 1de0: 00000006 00000005 000007ff 00000830 00000008 00010000 00000009 00000800 1e00: 00000101 00000002 00008001 00000007 00000003 00000004 00000005 0000070f 1e20: 00000000 9bd1fd6d 00000000 857503c0 8415a3c0 20000300 20000300 840abc00 1e40: e0401f14 e0401e50 813c4304 813c3244 00000000 00000000 00000000 9bd1fd6d 1e60: 00000000 00000000 8245d5b4 0000005f 83f26250 8415a3f0 83c56eac 840abc00 1e80: e0401ee4 e0401e90 807a5fa4 8079c39c 00000064 00000001 00000000 e0401eac 1ea0: 85a3e6d0 834e1d48 00006400 0000000b e0401ea0 00000000 00000000 9bd1fd6d 1ec0: 857503c0 40946400 20000300 20000300 857503c0 00000003 e0401ef4 e0401ee8 1ee0: 807a60c4 9bd1fd6d e0401f14 40946400 00000000 857503c0 20000300 857503c0 1f00: 00000003 840abc00 e0401fa4 e0401f18 80577dc8 813c3d34 e0401f4c e0401f28 1f20: 80347bbc 8034afa8 00000004 00010000 00000001 9bd1fd6d ffffff9c 7e9f7920 1f40: e0401fa4 e0401f50 80348458 80347ac8 00000000 7e9f7920 ffffffff 80234128 1f60: 00000000 00000000 00000000 00000000 00000000 9bd1fd6d 00000000 00000000 1f80: 00000000 00316308 00000036 8020029c 840abc00 00000036 00000000 e0401fa8 1fa0: 80200060 80577ca4 00000000 00000000 00000003 40946400 20000300 00000000 1fc0: 00000000 00000000 00316308 00000036 00000000 003162dc 0000047b 00000000 1fe0: 7e9f7780 7e9f7770 000195a4 00132510 60000010 00000003 00000000 00000000 Call trace: [<813cb5ec>] (parport_attach) from [<813c77ec>] (comedi_device_attach+0x108/0x250 drivers/comedi/drivers.c:1007) r6:8415a404 r5:81e17b1c r4:829d1b3c [<813c76e4>] (comedi_device_attach) from [<813c3338>] (do_devconfig_ioctl+0x100/0x220 drivers/comedi/comedi_fops.c:872) r10:00000001 r9:40946400 r8:840abc00 r7:20000300 r6:b5403587 r5:8415a3c0 r4:20000300 [<813c3238>] (do_devconfig_ioctl) from [<813c4304>] (comedi_unlocked_ioctl+0x5dc/0x1c50 drivers/comedi/comedi_fops.c:2178) r8:840abc00 r7:20000300 r6:20000300 r5:8415a3c0 r4:857503c0 [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (do_vfs_ioctl fs/ioctl.c:551 [inline]) [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (__do_sys_ioctl fs/ioctl.c:595 [inline]) [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (sys_ioctl+0x130/0xba0 fs/ioctl.c:583) r10:840abc00 r9:00000003 r8:857503c0 r7:20000300 r6:857503c0 r5:00000000 r4:40946400 [<80577c98>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xe0401fa8 to 0xe0401ff0) 1fa0: 00000000 00000000 00000003 40946400 20000300 00000000 1fc0: 00000000 00000000 00316308 00000036 00000000 003162dc 0000047b 00000000 1fe0: 7e9f7780 7e9f7770 000195a4 00132510 r10:00000036 r9:840abc00 r8:8020029c r7:00000036 r6:00316308 r5:00000000 r4:00000000 Code: e596306c e3a04000 e7f33053 e2433612 (e5c34000) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: e596306c ldr r3, [r6, #108] @ 0x6c 4: e3a04000 mov r4, #0 8: e7f33053 ubfx r3, r3, #0, #20 c: e2433612 sub r3, r3, #18874368 @ 0x1200000 * 10: e5c34000 strb r4, [r3] <-- trapping instruction final repro crashed as (corrupted=false): 8<--- cut here --- Unable to handle kernel paging request at virtual address fee02f00 when write [fee02f00] *pgd=80000080007003, *pmd=00000000 Internal error: Oops: a06 [#1] SMP ARM Modules linked in: CPU: 1 UID: 0 PID: 4147 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_writeb arch/arm/include/asm/io.h:88 [inline] PC is at parport_attach drivers/comedi/drivers/comedi_parport.c:289 [inline] PC is at parport_attach+0x174/0x1d0 drivers/comedi/drivers/comedi_parport.c:224 LR is at parport_attach drivers/comedi/drivers/comedi_parport.c:289 [inline] LR is at parport_attach+0x164/0x1d0 drivers/comedi/drivers/comedi_parport.c:224 pc : [<813cb760>] lr : [<813cb750>] psr: 60000013 sp : e0401d30 ip : e0401d30 fp : e0401d54 r10: 82b24908 r9 : 00000003 r8 : 8415a3c0 r7 : e0401d90 r6 : 8415a3c0 r5 : 00000000 r4 : 00000000 r3 : fee02f00 r2 : 81e1765c r1 : 00000001 r0 : 813cb3d0 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 855cdac0 DAC: 00000000 Register r0 information: non-slab/vmalloc memory Register r1 information: non-paged memory Register r2 information: non-slab/vmalloc memory Register r3 information: 0-page vmalloc region starting at 0xfee00000 allocated at pci_reserve_io+0x0/0x38 arch/arm/mm/mmu.c:1055 Register r4 information: NULL pointer Register r5 information: NULL pointer Register r6 information: slab kmalloc-192 start 8415a3c0 pointer offset 0 size 192 Register r7 information: 2-page vmalloc region starting at 0xe0400000 allocated at kernel_clone+0xac/0x3ec kernel/fork.c:2609 Register r8 information: slab kmalloc-192 start 8415a3c0 pointer offset 0 size 192 Register r9 information: non-paged memory Register r10 information: non-slab/vmalloc memory Register r11 information: 2-page vmalloc region starting at 0xe0400000 allocated at kernel_clone+0xac/0x3ec kernel/fork.c:2609 Register r12 information: 2-page vmalloc region starting at 0xe0400000 allocated at kernel_clone+0xac/0x3ec kernel/fork.c:2609 Process syz.2.17 (pid: 4147, stack limit = 0xe0400000) Stack: (0xe0401d30 to 0xe0402000) 1d20: 823ecc98 8415a3c0 829d1b3c 829d1b3c 1d40: 81e17b1c 8415a404 e0401d8c e0401d58 813c77ec 813cb5f8 20000300 00000000 1d60: e0401d7c 20000300 8415a3c0 b5403587 20000300 840abc00 40946400 00000001 1d80: e0401e4c e0401d90 813c3338 813c76f0 656d6f63 705f6964 6f707261 00007472 1da0: 00000000 00002f00 00000005 0000d09a ffffffff 00000003 fffffffe 20000004 1dc0: 00000003 00000ffe 7fffffff 0000000c 00000002 00000004 00000008 0000ffff 1de0: 00000006 00000005 000007ff 00000830 00000008 00010000 00000009 00000800 1e00: 00000101 00000002 00008001 00000007 00000003 00000004 00000005 0000070f 1e20: 00000000 9bd1fd6d 00000000 857503c0 8415a3c0 20000300 20000300 840abc00 1e40: e0401f14 e0401e50 813c4304 813c3244 00000000 00000000 00000000 9bd1fd6d 1e60: 00000000 00000000 8245d5b4 0000005f 83f26250 8415a3f0 83c56eac 840abc00 1e80: e0401ee4 e0401e90 807a5fa4 8079c39c 00000064 00000001 00000000 e0401eac 1ea0: 85a3e6d0 834e1d48 00006400 0000000b e0401ea0 00000000 00000000 9bd1fd6d 1ec0: 857503c0 40946400 20000300 20000300 857503c0 00000003 e0401ef4 e0401ee8 1ee0: 807a60c4 9bd1fd6d e0401f14 40946400 00000000 857503c0 20000300 857503c0 1f00: 00000003 840abc00 e0401fa4 e0401f18 80577dc8 813c3d34 e0401f4c e0401f28 1f20: 80347bbc 8034afa8 00000004 00010000 00000001 9bd1fd6d ffffff9c 7e9f7920 1f40: e0401fa4 e0401f50 80348458 80347ac8 00000000 7e9f7920 ffffffff 80234128 1f60: 00000000 00000000 00000000 00000000 00000000 9bd1fd6d 00000000 00000000 1f80: 00000000 00316308 00000036 8020029c 840abc00 00000036 00000000 e0401fa8 1fa0: 80200060 80577ca4 00000000 00000000 00000003 40946400 20000300 00000000 1fc0: 00000000 00000000 00316308 00000036 00000000 003162dc 0000047b 00000000 1fe0: 7e9f7780 7e9f7770 000195a4 00132510 60000010 00000003 00000000 00000000 Call trace: [<813cb5ec>] (parport_attach) from [<813c77ec>] (comedi_device_attach+0x108/0x250 drivers/comedi/drivers.c:1007) r6:8415a404 r5:81e17b1c r4:829d1b3c [<813c76e4>] (comedi_device_attach) from [<813c3338>] (do_devconfig_ioctl+0x100/0x220 drivers/comedi/comedi_fops.c:872) r10:00000001 r9:40946400 r8:840abc00 r7:20000300 r6:b5403587 r5:8415a3c0 r4:20000300 [<813c3238>] (do_devconfig_ioctl) from [<813c4304>] (comedi_unlocked_ioctl+0x5dc/0x1c50 drivers/comedi/comedi_fops.c:2178) r8:840abc00 r7:20000300 r6:20000300 r5:8415a3c0 r4:857503c0 [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (do_vfs_ioctl fs/ioctl.c:551 [inline]) [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (__do_sys_ioctl fs/ioctl.c:595 [inline]) [<813c3d28>] (comedi_unlocked_ioctl) from [<80577dc8>] (sys_ioctl+0x130/0xba0 fs/ioctl.c:583) r10:840abc00 r9:00000003 r8:857503c0 r7:20000300 r6:857503c0 r5:00000000 r4:40946400 [<80577c98>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xe0401fa8 to 0xe0401ff0) 1fa0: 00000000 00000000 00000003 40946400 20000300 00000000 1fc0: 00000000 00000000 00316308 00000036 00000000 003162dc 0000047b 00000000 1fe0: 7e9f7780 7e9f7770 000195a4 00132510 r10:00000036 r9:840abc00 r8:8020029c r7:00000036 r6:00316308 r5:00000000 r4:00000000 Code: e596306c e3a04000 e7f33053 e2433612 (e5c34000) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: e596306c ldr r3, [r6, #108] @ 0x6c 4: e3a04000 mov r4, #0 8: e7f33053 ubfx r3, r3, #0, #20 c: e2433612 sub r3, r3, #18874368 @ 0x1200000 * 10: e5c34000 strb r4, [r3] <-- trapping instruction