Starting background file system checks in 60 seconds. Mon Sep 27 06:03:18 UTC 2021 FreeBSD/amd64 (ci-freebsd-i386-4.c.syzkaller.internal) (ttyu0) Warning: Permanently added '10.128.0.62' (ECDSA) to the list of known hosts. 2021/09/27 06:03:31 fuzzer started 2021/09/27 06:03:31 dialing manager at 10.128.0.248:24539 2021/09/27 06:03:31 syscalls: 828 2021/09/27 06:03:31 code coverage: enabled 2021/09/27 06:03:31 comparison tracing: enabled 2021/09/27 06:03:31 extra coverage: support is not implemented in syzkaller 2021/09/27 06:03:31 setuid sandbox: support is not implemented in syzkaller 2021/09/27 06:03:31 namespace sandbox: support is not implemented in syzkaller 2021/09/27 06:03:31 Android sandbox: support is not implemented in syzkaller 2021/09/27 06:03:31 fault injection: support is not implemented in syzkaller 2021/09/27 06:03:31 leak checking: support is not implemented in syzkaller 2021/09/27 06:03:31 net packet injection: enabled 2021/09/27 06:03:31 net device setup: support is not implemented in syzkaller 2021/09/27 06:03:31 concurrency sanitizer: support is not implemented in syzkaller 2021/09/27 06:03:31 devlink PCI setup: support is not implemented in syzkaller 2021/09/27 06:03:31 USB emulation: support is not implemented in syzkaller 2021/09/27 06:03:31 hci packet injection: support is not implemented in syzkaller 2021/09/27 06:03:31 wifi device emulation: support is not implemented in syzkaller 2021/09/27 06:03:31 802.15.4 emulation: support is not implemented in syzkaller 2021/09/27 06:03:31 fetching corpus: 0, signal 0/2000 (executing program) 2021/09/27 06:03:31 fetching corpus: 50, signal 12196/16153 (executing program) 2021/09/27 06:03:31 fetching corpus: 100, signal 20000/25900 (executing program) 2021/09/27 06:03:31 fetching corpus: 150, signal 28559/36350 (executing program) 2021/09/27 06:03:31 fetching corpus: 200, signal 34313/43993 (executing program) 2021/09/27 06:03:31 fetching corpus: 250, signal 40799/52342 (executing program) 2021/09/27 06:03:32 fetching corpus: 300, signal 46942/60329 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06:04:00 executing program 1: r0 = socket$inet_sctp(0x2, 0x5, 0x84) connect$inet(r0, &(0x7f00000001c0)={0xffffffffffffff77, 0x2, 0x1, @rand_addr=0x7a}, 0x10) r1 = socket$inet6_sctp(0x1c, 0x5, 0x84) r2 = dup2(r0, r1) r3 = dup2(r1, r1) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x105, &(0x7f0000000140)={0x1, [0x0]}, &(0x7f0000000200)=0x8) getsockopt$inet6_sctp_SCTP_LOCAL_AUTH_CHUNKS(r2, 0x84, 0x103, &(0x7f0000000100)={r4, 0x2, "18cc"}, &(0x7f0000000280)=0xa) setsockopt$inet6_sctp_SCTP_EVENT(r3, 0x84, 0x1e, &(0x7f00000002c0)={r5, 0x5}, 0x8) 06:04:00 executing program 2: r0 = socket$inet(0x2, 0x3, 0x0) setsockopt$inet_buf(r0, 0x0, 0x54, &(0x7f0000002340)="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", 0x108) 06:04:01 executing program 3: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) ioctl$DIOCRCLRTSTATS(r0, 0xc4504441, &(0x7f0000000500)={{"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", "4ab05fcf09ce329a9909ff6aad658aa92c39eea5b8a5c26d79a6b734668c8f1b"}, 0x0}) [fib_algo] inet.0 (bsearch4#25) rebuild_fd_flm: switching algo to radix4_lockless 06:04:01 executing program 1: r0 = socket$inet_sctp(0x2, 0x5, 0x84) connect$inet(r0, &(0x7f00000001c0)={0xffffffffffffff77, 0x2, 0x1, @rand_addr=0x7a}, 0x10) r1 = socket$inet6_sctp(0x1c, 0x5, 0x84) r2 = dup2(r0, r1) r3 = dup2(r1, r1) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x105, &(0x7f0000000140)={0x1, [0x0]}, &(0x7f0000000200)=0x8) getsockopt$inet6_sctp_SCTP_LOCAL_AUTH_CHUNKS(r2, 0x84, 0x103, &(0x7f0000000100)={r4, 0x2, "18cc"}, &(0x7f0000000280)=0xa) setsockopt$inet6_sctp_SCTP_EVENT(r3, 0x84, 0x1e, &(0x7f00000002c0)={r5, 0x5}, 0x8) 06:04:01 executing program 2: r0 = socket$inet(0x2, 0x3, 0x0) setsockopt$inet_buf(r0, 0x0, 0x54, &(0x7f0000002340)="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", 0x108) 06:04:01 executing program 2: r0 = socket$inet(0x2, 0x3, 0x0) setsockopt$inet_buf(r0, 0x0, 0x54, &(0x7f0000002340)="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", 0x108) 06:04:01 executing program 1: r0 = socket$inet_sctp(0x2, 0x5, 0x84) connect$inet(r0, &(0x7f00000001c0)={0xffffffffffffff77, 0x2, 0x1, @rand_addr=0x7a}, 0x10) r1 = socket$inet6_sctp(0x1c, 0x5, 0x84) r2 = dup2(r0, r1) r3 = dup2(r1, r1) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x105, &(0x7f0000000140)={0x1, [0x0]}, &(0x7f0000000200)=0x8) getsockopt$inet6_sctp_SCTP_LOCAL_AUTH_CHUNKS(r2, 0x84, 0x103, &(0x7f0000000100)={r4, 0x2, "18cc"}, &(0x7f0000000280)=0xa) setsockopt$inet6_sctp_SCTP_EVENT(r3, 0x84, 0x1e, &(0x7f00000002c0)={r5, 0x5}, 0x8) 06:04:02 executing program 0: r0 = socket$inet6_sctp(0x1c, 0x1, 0x84) connect$inet6(r0, &(0x7f0000000000)={0x1c, 0x1c, 0x0, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) setsockopt$inet6_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x1202, &(0x7f0000000040), 0xc) 06:04:02 executing program 2: r0 = socket$inet(0x2, 0x3, 0x0) setsockopt$inet_buf(r0, 0x0, 0x54, &(0x7f0000002340)="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", 0x108) 06:04:02 executing program 3: r0 = socket$inet_sctp(0x2, 0x5, 0x84) connect$inet(r0, &(0x7f00000001c0)={0xffffffffffffff77, 0x2, 0x1, @rand_addr=0x7a}, 0x10) r1 = socket$inet6_sctp(0x1c, 0x5, 0x84) r2 = dup2(r0, r1) r3 = dup2(r1, r1) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x105, &(0x7f0000000140)={0x1, [0x0]}, &(0x7f0000000200)=0x8) getsockopt$inet6_sctp_SCTP_LOCAL_AUTH_CHUNKS(r2, 0x84, 0x103, &(0x7f0000000100)={r4, 0x2, "18cc"}, &(0x7f0000000280)=0xa) setsockopt$inet6_sctp_SCTP_EVENT(r3, 0x84, 0x1e, &(0x7f00000002c0)={r5, 0x5}, 0x8) 06:04:02 executing program 1: r0 = socket$inet_sctp(0x2, 0x5, 0x84) connect$inet(r0, &(0x7f00000001c0)={0xffffffffffffff77, 0x2, 0x1, @rand_addr=0x7a}, 0x10) r1 = socket$inet6_sctp(0x1c, 0x5, 0x84) r2 = dup2(r0, r1) r3 = dup2(r1, r1) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x105, &(0x7f0000000140)={0x1, [0x0]}, &(0x7f0000000200)=0x8) getsockopt$inet6_sctp_SCTP_LOCAL_AUTH_CHUNKS(r2, 0x84, 0x103, &(0x7f0000000100)={r4, 0x2, "18cc"}, &(0x7f0000000280)=0xa) setsockopt$inet6_sctp_SCTP_EVENT(r3, 0x84, 0x1e, &(0x7f00000002c0)={r5, 0x5}, 0x8) 06:04:02 executing program 2: r0 = socket$inet6_sctp(0x1c, 0x1, 0x84) connect$inet6(r0, &(0x7f0000000000)={0x1c, 0x1c, 0x0, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) setsockopt$inet6_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x1202, &(0x7f0000000040), 0xc) 06:04:02 executing program 3: r0 = socket$inet_sctp(0x2, 0x5, 0x84) connect$inet(r0, &(0x7f00000001c0)={0xffffffffffffff77, 0x2, 0x1, @rand_addr=0x7a}, 0x10) r1 = socket$inet6_sctp(0x1c, 0x5, 0x84) r2 = dup2(r0, r1) r3 = dup2(r1, r1) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x105, &(0x7f0000000140)={0x1, [0x0]}, &(0x7f0000000200)=0x8) getsockopt$inet6_sctp_SCTP_LOCAL_AUTH_CHUNKS(r2, 0x84, 0x103, &(0x7f0000000100)={r4, 0x2, "18cc"}, &(0x7f0000000280)=0xa) setsockopt$inet6_sctp_SCTP_EVENT(r3, 0x84, 0x1e, &(0x7f00000002c0)={r5, 0x5}, 0x8) 06:04:02 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) connect$inet6(r0, &(0x7f0000000100)={0x1c, 0x1c, 0x2, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) getsockopt$inet6_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x105, &(0x7f00000002c0)={0x1, [0x0]}, &(0x7f0000000300)=0x8) setsockopt$inet6_sctp_SCTP_PR_SUPPORTED(r0, 0x84, 0x26, &(0x7f00000000c0)={r1}, 0x8) 06:04:02 executing program 3: r0 = socket$inet_sctp(0x2, 0x5, 0x84) connect$inet(r0, &(0x7f00000001c0)={0xffffffffffffff77, 0x2, 0x1, @rand_addr=0x7a}, 0x10) r1 = socket$inet6_sctp(0x1c, 0x5, 0x84) r2 = dup2(r0, r1) r3 = dup2(r1, r1) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x105, &(0x7f0000000140)={0x1, [0x0]}, &(0x7f0000000200)=0x8) getsockopt$inet6_sctp_SCTP_LOCAL_AUTH_CHUNKS(r2, 0x84, 0x103, &(0x7f0000000100)={r4, 0x2, "18cc"}, &(0x7f0000000280)=0xa) setsockopt$inet6_sctp_SCTP_EVENT(r3, 0x84, 0x1e, &(0x7f00000002c0)={r5, 0x5}, 0x8) 06:04:03 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) connect$inet6(r0, &(0x7f0000000100)={0x1c, 0x1c, 0x2, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) getsockopt$inet6_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x105, &(0x7f00000002c0)={0x1, [0x0]}, &(0x7f0000000300)=0x8) setsockopt$inet6_sctp_SCTP_PR_SUPPORTED(r0, 0x84, 0x26, &(0x7f00000000c0)={r1}, 0x8) 06:04:03 executing program 3: r0 = openat$crypto(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$CIOCGSESSION(r0, 0xc0306365, &(0x7f0000000100)={0xb, 0x0, 0x21, &(0x7f0000000700)="15e1d81fcac2f5dacb0dbe2ccd25d1326c3f5b2a237cdee1756912b78813f5d0a1", 0x0, 0x0}) 06:04:03 executing program 0: r0 = socket$inet6_sctp(0x1c, 0x1, 0x84) connect$inet6(r0, &(0x7f0000000000)={0x1c, 0x1c, 0x0, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) setsockopt$inet6_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x1202, &(0x7f0000000040), 0xc) 06:04:03 executing program 2: r0 = socket$inet6_sctp(0x1c, 0x1, 0x84) connect$inet6(r0, &(0x7f0000000000)={0x1c, 0x1c, 0x0, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) setsockopt$inet6_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x1202, &(0x7f0000000040), 0xc) 06:04:03 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) connect$inet6(r0, &(0x7f0000000100)={0x1c, 0x1c, 0x2, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) getsockopt$inet6_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x105, &(0x7f00000002c0)={0x1, [0x0]}, &(0x7f0000000300)=0x8) setsockopt$inet6_sctp_SCTP_PR_SUPPORTED(r0, 0x84, 0x26, &(0x7f00000000c0)={r1}, 0x8) 06:04:03 executing program 3: r0 = openat$crypto(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$CIOCGSESSION(r0, 0xc0306365, &(0x7f0000000100)={0xb, 0x0, 0x21, &(0x7f0000000700)="15e1d81fcac2f5dacb0dbe2ccd25d1326c3f5b2a237cdee1756912b78813f5d0a1", 0x0, 0x0}) 06:04:03 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) connect$inet6(r0, &(0x7f0000000100)={0x1c, 0x1c, 0x2, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) getsockopt$inet6_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x105, &(0x7f00000002c0)={0x1, [0x0]}, &(0x7f0000000300)=0x8) setsockopt$inet6_sctp_SCTP_PR_SUPPORTED(r0, 0x84, 0x26, &(0x7f00000000c0)={r1}, 0x8) 06:04:03 executing program 3: r0 = openat$crypto(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$CIOCGSESSION(r0, 0xc0306365, &(0x7f0000000100)={0xb, 0x0, 0x21, &(0x7f0000000700)="15e1d81fcac2f5dacb0dbe2ccd25d1326c3f5b2a237cdee1756912b78813f5d0a1", 0x0, 0x0}) 06:04:03 executing program 1: r0 = openat$crypto(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$CIOCGSESSION(r0, 0xc0306365, &(0x7f0000000100)={0xb, 0x0, 0x21, &(0x7f0000000700)="15e1d81fcac2f5dacb0dbe2ccd25d1326c3f5b2a237cdee1756912b78813f5d0a1", 0x0, 0x0}) 06:04:04 executing program 0: r0 = socket$inet6_sctp(0x1c, 0x1, 0x84) connect$inet6(r0, &(0x7f0000000000)={0x1c, 0x1c, 0x0, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) setsockopt$inet6_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x1202, &(0x7f0000000040), 0xc) 06:04:04 executing program 1: r0 = openat$crypto(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$CIOCGSESSION(r0, 0xc0306365, &(0x7f0000000100)={0xb, 0x0, 0x21, &(0x7f0000000700)="15e1d81fcac2f5dacb0dbe2ccd25d1326c3f5b2a237cdee1756912b78813f5d0a1", 0x0, 0x0}) 06:04:04 executing program 2: r0 = socket$inet6_sctp(0x1c, 0x1, 0x84) connect$inet6(r0, &(0x7f0000000000)={0x1c, 0x1c, 0x0, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c) setsockopt$inet6_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x1202, &(0x7f0000000040), 0xc) 06:04:04 executing program 3: r0 = openat$crypto(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$CIOCGSESSION(r0, 0xc0306365, &(0x7f0000000100)={0xb, 0x0, 0x21, &(0x7f0000000700)="15e1d81fcac2f5dacb0dbe2ccd25d1326c3f5b2a237cdee1756912b78813f5d0a1", 0x0, 0x0}) 06:04:04 executing program 1: r0 = openat$crypto(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$CIOCGSESSION(r0, 0xc0306365, &(0x7f0000000100)={0xb, 0x0, 0x21, &(0x7f0000000700)="15e1d81fcac2f5dacb0dbe2ccd25d1326c3f5b2a237cdee1756912b78813f5d0a1", 0x0, 0x0}) 06:04:04 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) setsockopt$inet6_sctp_SCTP_EVENTS(r0, 0x84, 0xc, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x2, 0x10}, 0xb) r1 = socket$inet_sctp(0x2, 0x5, 0x84) r2 = fcntl$dupfd(r0, 0x0, r1) getsockopt$inet_sctp_SCTP_EVENTS(r2, 0x84, 0xc, &(0x7f0000000040), &(0x7f0000000080)=0xb) 06:04:04 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000000)={'bbr\x00'}, 0x24) setsockopt$inet_tcp_int(r0, 0x6, 0x43b, &(0x7f0000000080)=0x17, 0x4) 06:04:04 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) setsockopt$inet6_sctp_SCTP_EVENTS(r0, 0x84, 0xc, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x2, 0x10}, 0xb) r1 = socket$inet_sctp(0x2, 0x5, 0x84) r2 = fcntl$dupfd(r0, 0x0, r1) getsockopt$inet_sctp_SCTP_EVENTS(r2, 0x84, 0xc, &(0x7f0000000040), &(0x7f0000000080)=0xb) 06:04:05 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000000)={'bbr\x00'}, 0x24) setsockopt$inet_tcp_int(r0, 0x6, 0x43b, &(0x7f0000000080)=0x17, 0x4) 06:04:05 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) setsockopt$inet6_sctp_SCTP_EVENTS(r0, 0x84, 0xc, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x2, 0x10}, 0xb) r1 = socket$inet_sctp(0x2, 0x5, 0x84) r2 = fcntl$dupfd(r0, 0x0, r1) getsockopt$inet_sctp_SCTP_EVENTS(r2, 0x84, 0xc, &(0x7f0000000040), &(0x7f0000000080)=0xb) 06:04:05 executing program 2: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000000)={'bbr\x00'}, 0x24) setsockopt$inet_tcp_int(r0, 0x6, 0x43b, &(0x7f0000000080)=0x17, 0x4) 06:04:05 executing program 0: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) setsockopt$inet6_sctp_SCTP_EVENTS(r0, 0x84, 0xc, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x2, 0x10}, 0xb) r1 = socket$inet_sctp(0x2, 0x5, 0x84) r2 = fcntl$dupfd(r0, 0x0, r1) getsockopt$inet_sctp_SCTP_EVENTS(r2, 0x84, 0xc, &(0x7f0000000040), &(0x7f0000000080)=0xb) 06:04:05 executing program 2: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000000)={'bbr\x00'}, 0x24) setsockopt$inet_tcp_int(r0, 0x6, 0x43b, &(0x7f0000000080)=0x17, 0x4) 06:04:05 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000000)={'bbr\x00'}, 0x24) setsockopt$inet_tcp_int(r0, 0x6, 0x43b, &(0x7f0000000080)=0x17, 0x4) 06:04:05 executing program 1: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) setsockopt$inet6_sctp_SCTP_EVENTS(r0, 0x84, 0xc, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x2, 0x10}, 0xb) r1 = socket$inet_sctp(0x2, 0x5, 0x84) r2 = fcntl$dupfd(r0, 0x0, r1) getsockopt$inet_sctp_SCTP_EVENTS(r2, 0x84, 0xc, &(0x7f0000000040), &(0x7f0000000080)=0xb) 06:04:05 executing program 2: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000000)={'bbr\x00'}, 0x24) setsockopt$inet_tcp_int(r0, 0x6, 0x43b, &(0x7f0000000080)=0x17, 0x4) 06:04:05 executing program 2: setsockopt$inet6_tcp_TCP_CONGESTION(0xffffffffffffffff, 0x6, 0x40, &(0x7f0000000080)='cubic\x00', 0x6) r0 = socket$inet_udplite(0x2, 0x2, 0x88) r1 = socket$inet_sctp(0x2, 0x1, 0x84) r2 = fcntl$dupfd(r1, 0x0, r0) setsockopt$inet_sctp_SCTP_FRAGMENT_INTERLEAVE(r2, 0x84, 0x24, &(0x7f0000000000), 0xfe6a) sendto$inet(r2, &(0x7f0000000040)='\'', 0x1, 0x0, &(0x7f00000000c0)={0x10, 0x2, 0x2, @remote={0xac, 0x14, 0x0}}, 0x10) 06:04:05 executing program 0: r0 = socket$inet6_sctp(0x1c, 0x5, 0x84) setsockopt$inet6_sctp_SCTP_EVENTS(r0, 0x84, 0xc, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x2, 0x10}, 0xb) r1 = socket$inet_sctp(0x2, 0x5, 0x84) r2 = fcntl$dupfd(r0, 0x0, r1) getsockopt$inet_sctp_SCTP_EVENTS(r2, 0x84, 0xc, &(0x7f0000000040), &(0x7f0000000080)=0xb) 06:04:05 executing program 1: r0 = openat$bpf(0xffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$BIOCSETWF(r0, 0x8008427b, &(0x7f0000000080)={0x1, &(0x7f00000000c0)=[{0x8000}]}) 06:04:05 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000000)={'bbr\x00'}, 0x24) setsockopt$inet_tcp_int(r0, 0x6, 0x43b, &(0x7f0000000080)=0x17, 0x4) 06:04:05 executing program 1: r0 = openat$bpf(0xffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$BIOCSETWF(r0, 0x8008427b, &(0x7f0000000080)={0x1, &(0x7f00000000c0)=[{0x8000}]}) 06:04:05 executing program 1: r0 = openat$bpf(0xffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$BIOCSETWF(r0, 0x8008427b, &(0x7f0000000080)={0x1, &(0x7f00000000c0)=[{0x8000}]}) Kernel page fault with the following non-sleepable locks held: exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009e933380) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3355 exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe009e940460) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3322 exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe00081b7310) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3321 06:04:05 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) sendto$inet(r0, 0x0, 0x0, 0x0, &(0x7f0000000040)={0x10, 0x2, 0x3, @rand_addr=0x9}, 0x10) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000100)={'rack\x00'}, 0x24) 06:04:05 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) sendto$inet(r0, 0x0, 0x0, 0x0, &(0x7f0000000040)={0x10, 0x2, 0x3, @rand_addr=0x9}, 0x10) setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000100)={'rack\x00'}, 0x24) exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe009e940480) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3320 stack backtrace: #0 0xffffffff817fc153 at witness_debugger+0x173 #1 0xffffffff817fe5c3 at witness_warn+0x893 #2 0xffffffff821dc522 at trap_pfault+0x162 #3 0xffffffff821dad17 at trap+0x5e7 #4 0xffffffff821814d8 at calltrap+0x8 #5 0xffffffff847c0ddc at sctp_med_chunk_output+0x190c #6 0xffffffff847bc935 at sctp_chunk_output+0x2b25 #7 0xffffffff847eabac at sctp_inpcb_free+0xbcc #8 0xffffffff8481672b at sctp_close+0x1fb #9 0xffffffff8187994e at soclose+0x3fe #10 0xffffffff8160a3c8 at _fdrop+0x58 #11 0xffffffff81611d56 at closef+0x686 #12 0xffffffff81610dda at fdescfree_fds+0x1fa #13 0xffffffff81610053 at fdescfree+0x903 #14 0xffffffff81637c27 at exit1+0x8b7 #15 0xffffffff81637368 at sys_sys_exit+0x28 #16 0xffffffff82355caf at ia32_syscall+0x41f #17 0xffffffff8218267f at int0x80_syscall_common+0x9c Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xffffffffffffffff fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff847fec92 stack pointer = 0x0:0xfffffe009bfbbd40 frame pointer = 0x0:0xfffffe009bfbbd70 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 915 (syz-executor.2) trap number = 12