Extracting prog: 8m20.964855731s Minimizing prog: 27m8.161864493s Simplifying prog options: 0s Extracting C: 1m51.797746651s Simplifying C: 9m57.061575325s 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$COMEDI_INSNLIST detailed listing: executing program 0: r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f00000000c0)={'comedi_parport\x00', [0x4f23, 0x5, 0x2, 0x4000401, 0x1, 0x40000cc7, 0xfff, 0x5c952399, 0x5, 0x3ff, 0x802, 0x8, 0x10001, 0x1, 0x9, 0xe1cb, 0x6, 0x401, 0x3, 0x395, 0x80000089, 0xfffffffd, 0x32, 0xfffffff5, 0xffffeadb, 0x7, 0x3c, 0x8, 0x3, 0x8000000, 0x2ec0]}) ioctl$COMEDI_INSNLIST(r0, 0x8010640b, &(0x7f0000000000)={0x1, &(0x7f00000d76c0)=[{0xa000005, 0x0, 0x0, 0x0, 0x2da}]}) 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}}): [4, 3, 5, 7, 4, 20, 20, 3, 4, 7, 5, 6, 10, 4, 3, 6, 3, 6, 3] detailed listing: executing program 0: r0 = syz_usb_connect(0x2, 0x36, &(0x7f00000003c0)=ANY=[@ANYBLOB="1201410127c0de206a0803003ff0010203010902240001000010000904020202f3bff50009050602000202000a0905825f2f"], 0x0) getsockopt$inet_int(0xffffffffffffffff, 0x0, 0xc, 0x0, 0x0) fsopen(0x0, 0x0) syz_usb_control_io$lan78xx(r0, &(0x7f0000000140)={0x14, 0x0, &(0x7f00000000c0)={0x0, 0x3, 0x16, @string={0x16, 0x3, "23c4e50aac4e9562ad70f6dadee62a33ade2be4d"}}}, 0x0) executing program 0: r0 = inotify_init1(0x80000) inotify_add_watch(r0, &(0x7f0000000240)='.\x00', 0x60000726) futimesat(0xffffffffffffff9c, &(0x7f00000000c0)='.\x00', 0x0) executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000040)={'wlan1\x00', 0x0}) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NL80211_CMD_TDLS_OPER(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000000c0)={0x30, r3, 0xfd39e943ccf1163b, 0x4070bd25, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r1}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_TDLS_OPERATION={0x5, 0x8a, 0x1}]}, 0x30}, 0x1, 0x0, 0x0, 0x20000010}, 0x50) executing program 0: timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) io_uring_setup(0x1416, 0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040), 0x0) ppoll(0x0, 0x0, &(0x7f0000000240), 0x0, 0x0) eventfd2(0x8, 0x0) executing program 0: syz_genetlink_get_family_id$nl80211(0x0, 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, 0x0) setreuid(0xffffffffffffffff, 0xee00) add_key(&(0x7f0000000040)='dns_resolver\x00', &(0x7f0000000400)={'syz', 0x3}, &(0x7f0000000080)="00000102feff", 0x6, 0xfffffffffffffffb) executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) prctl$PR_SET_TAGGED_ADDR_CTRL(0x37, 0x1) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x5) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000540)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@file={0x0, './file1\x00'}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) r3 = socket$inet6_udp(0xa, 0x2, 0x0) getsockopt$inet6_int(r3, 0x29, 0x2, 0x0, &(0x7f0000000340)) recvmmsg(r1, &(0x7f0000000480), 0x400034f, 0x2, 0x0) r4 = syz_open_dev$tty1(0xc, 0x4, 0x3) r5 = dup(r4) write$UHID_INPUT(r5, &(0x7f0000001980)={0x9, 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0x1000}}, 0x1006) openat$snapshot(0xffffffffffffff9c, &(0x7f0000000140), 0x1, 0x0) quotactl$Q_SYNC(0xffffffff80000102, 0x0, 0x0, 0x0) setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x5, &(0x7f0000000140)=0x1, 0x4) keyctl$instantiate(0xc, 0x0, &(0x7f0000000100)=ANY=[@ANYBLOB='new default user:syz '], 0x2a, 0xfffffffffffffff9) connect$inet6(0xffffffffffffffff, &(0x7f0000000240)={0xa, 0x4e23, 0xa4e4, @remote, 0x3}, 0x1c) executing program 32: prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) prctl$PR_SET_TAGGED_ADDR_CTRL(0x37, 0x1) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x5) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000540)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@file={0x0, './file1\x00'}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) r3 = socket$inet6_udp(0xa, 0x2, 0x0) getsockopt$inet6_int(r3, 0x29, 0x2, 0x0, &(0x7f0000000340)) recvmmsg(r1, &(0x7f0000000480), 0x400034f, 0x2, 0x0) r4 = syz_open_dev$tty1(0xc, 0x4, 0x3) r5 = dup(r4) write$UHID_INPUT(r5, &(0x7f0000001980)={0x9, {"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0x1000}}, 0x1006) openat$snapshot(0xffffffffffffff9c, &(0x7f0000000140), 0x1, 0x0) quotactl$Q_SYNC(0xffffffff80000102, 0x0, 0x0, 0x0) setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x5, &(0x7f0000000140)=0x1, 0x4) keyctl$instantiate(0xc, 0x0, &(0x7f0000000100)=ANY=[@ANYBLOB='new default user:syz '], 0x2a, 0xfffffffffffffff9) connect$inet6(0xffffffffffffffff, &(0x7f0000000240)={0xa, 0x4e23, 0xa4e4, @remote, 0x3}, 0x1c) executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nfc(&(0x7f0000000040), r0) sendmsg$NFC_CMD_START_POLL(r0, &(0x7f0000000440)={0x0, 0xfffffffffffffe08, &(0x7f0000000480)={&(0x7f00000005c0)={0x24, r1, 0x1, 0x70bd2d, 0x235, {}, [@NFC_ATTR_DEVICE_INDEX={0x8}, @NFC_ATTR_TM_PROTOCOLS={0x8, 0xe, 0x64}]}, 0x24}, 0x1, 0x0, 0x0, 0x8000}, 0x0) executing program 1: mknod$loop(&(0x7f0000000000)='./file0\x00', 0x6000, 0x0) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x42, 0x0) mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f0000002140)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r0, @ANYBLOB=',rootmode=00000000000000000100000,user_id=', @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0]) openat2$dir(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', &(0x7f0000000140)={0x82, 0x0, 0x31}, 0x18) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x0) mount$bind(&(0x7f0000000000)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0) syz_clone(0x80000400, 0x0, 0x0, 0x0, 0x0, 0x0) chroot(&(0x7f0000000100)='./file0\x00') chdir(&(0x7f0000000500)='./file0\x00') mount(0x0, &(0x7f00000001c0)='./file0\x00', &(0x7f0000000040)='debugfs\x00', 0x1000016, 0x0) pivot_root(&(0x7f00000003c0)='./file0/../file0\x00', &(0x7f0000000000)='./file0/../file0\x00') executing program 1: r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0) madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0xe) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='smaps\x00') mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x6) executing program 1: write$P9_RVERSION(0xffffffffffffffff, &(0x7f0000000200)={0x15, 0x65, 0xffff, 0xa0, 0x8, '9P2000.L'}, 0x15) 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}, 0x4004045) r0 = io_uring_setup(0x1b7b, &(0x7f0000000040)={0x0, 0x970, 0x1f480, 0x1, 0x399}) bind$inet6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x4e21, 0x7, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0xa}, 0x1c) io_uring_enter(r0, 0x8ae, 0x6933, 0x17, 0x0, 0xeffd) executing program 1: mknodat$loop(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x20, 0x1) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) mount$fuse(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000080), 0x0, &(0x7f0000000300)={{'fd', 0x3d, r0}, 0x2c, {'rootmode', 0x3d, 0x8000}}) read$FUSE(r0, &(0x7f0000004280)={0x2020, 0x0, 0x0}, 0x2020) syz_fuse_handle_req(r0, &(0x7f00000062c0)="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", 0x2000, &(0x7f00000015c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000440)={0x10, 0xffffffffffffffda, 0x3ff, {0x0, 0xb}}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_INIT(r0, &(0x7f0000000180)={0x50, 0x0, r1, {0x7, 0x2b, 0xffffffde, 0x318145a8, 0x0, 0xfffe, 0x2, 0xfffffff6, 0x0, 0x0, 0x8, 0x100}}, 0x50) openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40242, 0x1) close(r0) openat(0xffffffffffffff9c, &(0x7f0000000580)='./file0\x00', 0x2c41, 0x0) pselect6(0x40, &(0x7f0000000000)={0x2, 0x0, 0x0, 0x0, 0x800}, 0x0, &(0x7f0000000240)={0x1f, 0x6, 0x381, 0x0, 0x0, 0x9e25}, 0x0, 0x0) executing program 2: r0 = mq_open(&(0x7f0000000380)='&\x00w\xb4N6Bf\xa9\xc2\xd0\b\x06L\xbbQ\xd6T\xe3+SD\xa8\x0f\xefwHw\xdab\xc4\x1a\xe55@hA5\xd6\xec.)\x8f}\xc5#L\x99\"\x84;{\xfa\x04~\xf1\x17\x1d\x90\x83\xfc\x1e\xae\xb0/(\xbb\xd3\xb7\xca\x13j\xab\xfa\xc5Mq\xb7ks\xe0 \x9d\xf8\x7f\x84b\xa4h\xeekc\xffZ\x9fg\x84lm\xd7F\x97\xdcd\v\x00\x00\x90\x03\x12^\xf2{\xf1\xbe\x12[~\xe7\xca\xe4\x13\xd6k\xa6\xf3v5F\xc9.\xce\x87z\xd4<\xa8\xba\xd0\x9c\ff\xe1\xe2\xf9\x18\xc0\xd0\xa1\x02K\xdd] lr : [<81401174>] psr: 60000013 sp : ea461d30 ip : ea461d30 fp : ea461d54 r10: 82b28b30 r9 : 00000003 r8 : 84577240 r7 : ea461d90 r6 : 84577240 r5 : 00000000 r4 : 00000000 r3 : fee04f23 r2 : 81e24f44 r1 : 00000001 r0 : 81400df4 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 859ac340 DAC: fffffffd 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 84577240 pointer offset 0 size 192 Register r7 information: 2-page vmalloc region starting at 0xea460000 allocated at kernel_clone+0xac/0x3f4 kernel/fork.c:2651 Register r8 information: slab kmalloc-192 start 84577240 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 0xea460000 allocated at kernel_clone+0xac/0x3f4 kernel/fork.c:2651 Register r12 information: 2-page vmalloc region starting at 0xea460000 allocated at kernel_clone+0xac/0x3f4 kernel/fork.c:2651 Process syz.2.17 (pid: 4026, stack limit = 0xea460000) Stack: (0xea461d30 to 0xea462000) 1d20: 8243d0ec 84577240 829d3948 829d3948 1d40: 81e25404 00000000 ea461d8c ea461d58 813fcdb0 8140101c 40946400 00000000 1d60: ea461d7c 200000c0 84577240 b5403587 40946400 85b03c00 00000003 84577270 1d80: ea461e4c ea461d90 813f86e0 813fccb0 656d6f63 705f6964 6f707261 00007472 1da0: 00000000 00004f23 00000005 00000002 04000401 00000001 40000cc7 00000fff 1dc0: 5c952399 00000005 000003ff 00000802 00000008 00010001 00000001 00000009 1de0: 0000e1cb 00000006 00000401 00000003 00000395 80000089 fffffffd 00000032 1e00: fffffff5 ffffeadb 00000007 0000003c 00000008 00000003 08000000 00002ec0 1e20: 00000000 b760f551 00000000 84dafe40 84577240 200000c0 40946400 85b03c00 1e40: ea461f14 ea461e50 813f9260 813f8618 00000000 b760f551 00000000 00000000 1e60: 824b15ec ea461ea4 0000005f 83fdbbe8 00000064 844e051c ea461ee4 ea461e88 1e80: 807b404c 807aa6c8 00000064 00000001 00000000 ea461ea4 85a10550 83424088 1ea0: 00006400 0000000b ea461e98 00000000 00000000 b760f551 ea461f24 84dafe40 1ec0: 40946400 200000c0 200000c0 84dafe40 00000003 85b03c00 ea461ef4 ea461ee8 1ee0: 807b417c b760f551 ea461f14 00000000 84dafe40 40946400 200000c0 84dafe40 1f00: 00000003 85b03c00 ea461fa4 ea461f18 8058223c 813f9168 ea461f4c ea461f28 1f20: 8034b6ac 8034ea2c 80233e34 804d7224 ea461f54 ea461f40 8025ba7c 00000004 1f40: ea461fa4 ea461f50 8034bfcc 8034b5e8 00000000 00000004 ffffffff 80233c18 1f60: 00000000 00000000 00000000 00000000 00000000 b760f551 ea461fac 00000000 1f80: 00000000 00346310 00000036 8020029c 85b03c00 00000036 00000000 ea461fa8 1fa0: 80200060 80582004 00000000 00000000 00000003 40946400 200000c0 00000000 1fc0: 00000000 00000000 00346310 00000036 003462d8 00000000 003462d8 003462e4 1fe0: 7ed0e790 7ed0e780 00018734 0012fc20 60000010 00000003 00000000 00000000 Call trace: [<81401010>] (parport_attach) from [<813fcdb0>] (comedi_device_attach+0x10c/0x248 drivers/comedi/drivers.c:1069) r6:00000000 r5:81e25404 r4:829d3948 [<813fcca4>] (comedi_device_attach) from [<813f86e0>] (do_devconfig_ioctl+0xd4/0x21c drivers/comedi/comedi_fops.c:928) r10:84577270 r9:00000003 r8:85b03c00 r7:40946400 r6:b5403587 r5:84577240 r4:200000c0 [<813f860c>] (do_devconfig_ioctl) from [<813f9260>] (comedi_unlocked_ioctl+0x104/0x1c88 drivers/comedi/comedi_fops.c:2240) r8:85b03c00 r7:40946400 r6:200000c0 r5:84577240 r4:84dafe40 [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (do_vfs_ioctl fs/ioctl.c:551 [inline]) [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (__do_sys_ioctl fs/ioctl.c:595 [inline]) [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (sys_ioctl+0x244/0xb58 fs/ioctl.c:583) r10:85b03c00 r9:00000003 r8:84dafe40 r7:200000c0 r6:40946400 r5:84dafe40 r4:00000000 [<80581ff8>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xea461fa8 to 0xea461ff0) 1fa0: 00000000 00000000 00000003 40946400 200000c0 00000000 1fc0: 00000000 00000000 00346310 00000036 003462d8 00000000 003462d8 003462e4 1fe0: 7ed0e790 7ed0e780 00018734 0012fc20 r10:00000036 r9:85b03c00 r8:8020029c r7:00000036 r6:00346310 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 fee04f23 when write [fee04f23] *pgd=80000080007003, *pmd=00000000 Internal error: Oops: a06 [#1] SMP ARM Modules linked in: CPU: 0 UID: 0 PID: 4026 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 : [<81401184>] lr : [<81401174>] psr: 60000013 sp : ea461d30 ip : ea461d30 fp : ea461d54 r10: 82b28b30 r9 : 00000003 r8 : 84577240 r7 : ea461d90 r6 : 84577240 r5 : 00000000 r4 : 00000000 r3 : fee04f23 r2 : 81e24f44 r1 : 00000001 r0 : 81400df4 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 859ac340 DAC: fffffffd 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 84577240 pointer offset 0 size 192 Register r7 information: 2-page vmalloc region starting at 0xea460000 allocated at kernel_clone+0xac/0x3f4 kernel/fork.c:2651 Register r8 information: slab kmalloc-192 start 84577240 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 0xea460000 allocated at kernel_clone+0xac/0x3f4 kernel/fork.c:2651 Register r12 information: 2-page vmalloc region starting at 0xea460000 allocated at kernel_clone+0xac/0x3f4 kernel/fork.c:2651 Process syz.2.17 (pid: 4026, stack limit = 0xea460000) Stack: (0xea461d30 to 0xea462000) 1d20: 8243d0ec 84577240 829d3948 829d3948 1d40: 81e25404 00000000 ea461d8c ea461d58 813fcdb0 8140101c 40946400 00000000 1d60: ea461d7c 200000c0 84577240 b5403587 40946400 85b03c00 00000003 84577270 1d80: ea461e4c ea461d90 813f86e0 813fccb0 656d6f63 705f6964 6f707261 00007472 1da0: 00000000 00004f23 00000005 00000002 04000401 00000001 40000cc7 00000fff 1dc0: 5c952399 00000005 000003ff 00000802 00000008 00010001 00000001 00000009 1de0: 0000e1cb 00000006 00000401 00000003 00000395 80000089 fffffffd 00000032 1e00: fffffff5 ffffeadb 00000007 0000003c 00000008 00000003 08000000 00002ec0 1e20: 00000000 b760f551 00000000 84dafe40 84577240 200000c0 40946400 85b03c00 1e40: ea461f14 ea461e50 813f9260 813f8618 00000000 b760f551 00000000 00000000 1e60: 824b15ec ea461ea4 0000005f 83fdbbe8 00000064 844e051c ea461ee4 ea461e88 1e80: 807b404c 807aa6c8 00000064 00000001 00000000 ea461ea4 85a10550 83424088 1ea0: 00006400 0000000b ea461e98 00000000 00000000 b760f551 ea461f24 84dafe40 1ec0: 40946400 200000c0 200000c0 84dafe40 00000003 85b03c00 ea461ef4 ea461ee8 1ee0: 807b417c b760f551 ea461f14 00000000 84dafe40 40946400 200000c0 84dafe40 1f00: 00000003 85b03c00 ea461fa4 ea461f18 8058223c 813f9168 ea461f4c ea461f28 1f20: 8034b6ac 8034ea2c 80233e34 804d7224 ea461f54 ea461f40 8025ba7c 00000004 1f40: ea461fa4 ea461f50 8034bfcc 8034b5e8 00000000 00000004 ffffffff 80233c18 1f60: 00000000 00000000 00000000 00000000 00000000 b760f551 ea461fac 00000000 1f80: 00000000 00346310 00000036 8020029c 85b03c00 00000036 00000000 ea461fa8 1fa0: 80200060 80582004 00000000 00000000 00000003 40946400 200000c0 00000000 1fc0: 00000000 00000000 00346310 00000036 003462d8 00000000 003462d8 003462e4 1fe0: 7ed0e790 7ed0e780 00018734 0012fc20 60000010 00000003 00000000 00000000 Call trace: [<81401010>] (parport_attach) from [<813fcdb0>] (comedi_device_attach+0x10c/0x248 drivers/comedi/drivers.c:1069) r6:00000000 r5:81e25404 r4:829d3948 [<813fcca4>] (comedi_device_attach) from [<813f86e0>] (do_devconfig_ioctl+0xd4/0x21c drivers/comedi/comedi_fops.c:928) r10:84577270 r9:00000003 r8:85b03c00 r7:40946400 r6:b5403587 r5:84577240 r4:200000c0 [<813f860c>] (do_devconfig_ioctl) from [<813f9260>] (comedi_unlocked_ioctl+0x104/0x1c88 drivers/comedi/comedi_fops.c:2240) r8:85b03c00 r7:40946400 r6:200000c0 r5:84577240 r4:84dafe40 [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (do_vfs_ioctl fs/ioctl.c:551 [inline]) [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (__do_sys_ioctl fs/ioctl.c:595 [inline]) [<813f915c>] (comedi_unlocked_ioctl) from [<8058223c>] (sys_ioctl+0x244/0xb58 fs/ioctl.c:583) r10:85b03c00 r9:00000003 r8:84dafe40 r7:200000c0 r6:40946400 r5:84dafe40 r4:00000000 [<80581ff8>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xea461fa8 to 0xea461ff0) 1fa0: 00000000 00000000 00000003 40946400 200000c0 00000000 1fc0: 00000000 00000000 00346310 00000036 003462d8 00000000 003462d8 003462e4 1fe0: 7ed0e790 7ed0e780 00018734 0012fc20 r10:00000036 r9:85b03c00 r8:8020029c r7:00000036 r6:00346310 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