Extracting prog: 37m7.098131849s
Minimizing prog: 20m41.802374902s
Simplifying prog options: 16m46.421094757s
Extracting C: 6m8.375340924s
Simplifying C: 0s
extracting reproducer from 24 programs
testing a last program of every proc
single: executing 4 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$nl_generic-sendmsg$nl_generic
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000040)=ANY=[@ANYBLOB="f80000003e000701feffffff00000000017c0000040042800c00018006000600800a0000d1000280cb001480c7000d"], 0xf8}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWTABLE={0x20, 0x0, 0xa, 0x5, 0x0, 0x0, {0x7}, [@NFTA_TABLE_NAME={0x9, 0x1, 'syz0\x00'}]}, @NFT_MSG_NEWSET={0x48, 0x9, 0xa, 0x401, 0x0, 0x0, {0x7}, [@NFTA_SET_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_SET_DESC={0xc, 0x9, 0x0, 0x1, [@NFTA_SET_DESC_SIZE={0x8, 0x1, 0x1, 0x0, 0x60000002}]}, @NFTA_SET_KEY_LEN={0x8, 0x5, 0x1, 0x0, 0x2d}, @NFTA_SET_ID={0x8}, @NFTA_SET_NAME={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x10, 0x1, 0x0, 0x0, {0x0, 0x84}}}, 0x90}, 0x1, 0x0, 0x0, 0x20000080}, 0x0)
program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$dsp-ioctl$SOUND_PCM_READ_RATE
detailed listing:
executing program 0:
r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000001b80), 0x0, 0x0)
ioctl$SOUND_PCM_READ_RATE(r0, 0x80045002, &(0x7f0000001bc0))
program did not crash
single: failed to extract reproducer
bisect: bisecting 24 programs with base timeout 30s
testing program (duration=36s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]
detailed listing:
executing program 1:
r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
ioctl$SIOCX25SDTEFACILITIES(r0, 0x89eb, &(0x7f0000000000)={0x9, 0x9, 0x4, 0x6, 0x7, 0x3, 0xc, "ffbfd3928fb53131be033908979a61179f97309e", "9453715b3e75f01018f816a3ebc9322aaa532ac5"})
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000880)={0x18, 0x41, 0x107, 0x0, 0x25dfdbfc, {0x1, 0x7c}, [@nested={0x4, 0x31}]}, 0x18}}, 0x4010)
executing program 1:
r0 = openat$pidfd(0xffffffffffffff9c, &(0x7f0000000840), 0x0, 0x0)
lseek(r0, 0x5, 0x4)
executing program 1:
syz_clone3(&(0x7f0000000300)={0x140000000, 0x0, 0x0, 0x0, {0x2b}, 0x0, 0x0, 0x0, 0x0}, 0x58)
syz_clone(0x80000, 0x0, 0x0, 0x0, 0x0, 0x0)
executing program 3:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/protocols\x00')
read$FUSE(r0, &(0x7f0000000880)={0x2020}, 0x2020)
executing program 2:
r0 = syz_open_dev$vbi(&(0x7f0000000000), 0x1, 0x2)
ioctl$VIDIOC_G_EXT_CTRLS(r0, 0xc0205647, &(0x7f0000000100)={0xf000000, 0x1, 0x0, 0xffffffffffffffff, 0x0, &(0x7f0000000080)={0x98f90b, 0xffffc002, '\x00', @p_u8=&(0x7f0000000280)}})
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
setsockopt$bt_BT_FLUSHABLE(r0, 0x112, 0x8, 0x0, 0x0)
executing program 2:
r0 = socket(0x1e, 0x5, 0x0)
setsockopt$packet_tx_ring(r0, 0x10f, 0x87, 0x0, 0x0)
executing program 3:
r0 = syz_open_dev$vim2m(&(0x7f00000006c0), 0x8, 0x2)
ppoll(&(0x7f00000000c0)=[{r0, 0x8000}], 0x1, &(0x7f0000000100), &(0x7f0000000140)={[0x1]}, 0x8)
executing program 0:
r0 = memfd_create(&(0x7f00000000c0)='[\v\xdbX\xae[\x1a\xa9\xfd\xfa\xad\xd1md\xc8\x85HX\xa9%\f\x1ae\xe0\x00\x00\x00\x00\xfb\xff\x00\x00\x81\x9eG\xd9,\xe2\xc6a\x9f\xe8\xf1\xb3\x86\xe2+Op\xd0\xa2\x82\x1eb;(\xb5\xe1jS\xd6\x91%||\xa0\x8ez\xadT\xc8\f\xe5\x89\xbf3:\x99\x1e\xac`\xc3\xcf\xd3\xae\xd2\a\x11\xa9\xa5^\xff\xf5\x95\xd2q#\xc6\xca\x97\x9d\xcb\x1e\x80\xd6\xd5%N&\xf8#\x80z8Z\xd2}\xf5\xe4\x9f5\x9b\x01\xf9t\xbb\x1er\x14\xdb\xd3\xcd\xfd\xbdnC\xec', 0x0)
fsetxattr$security_ima(r0, &(0x7f0000000040), &(0x7f0000000080)=ANY=[@ANYBLOB="06"], 0x2, 0x0)
executing program 2:
r0 = syz_open_dev$video4linux(&(0x7f0000000080), 0x0, 0x0)
ioctl$VIDIOC_SUBSCRIBE_EVENT(r0, 0x4020565a, &(0x7f00000000c0))
executing program 0:
r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f00000000c0), 0x0)
ioctl$SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT(r0, 0xc0a85352, &(0x7f0000000200)={{0x80}, 'port0\x00'})
executing program 3:
r0 = openat$ipvs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/net/ipv4/vs/sync_threshold\x00', 0x2, 0x0)
preadv(r0, &(0x7f00000041c0)=[{&(0x7f0000001040)=""/102, 0x5}], 0x2, 0x0, 0x0)
executing program 2:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)=[{&(0x7f0000000100)="5c00000013006bec9e3be35c6e17aa31076b876c1d0000007ea60864160af36507001ac00400020208000c000300010004000000eab556a705251e618294ff0051f60a84c9f4d4938037e786a6d0000300000000000200ffffc6c953", 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x20040090)
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000900)=ANY=[@ANYBLOB="2800000014001901000000000000000228"], 0x28}}, 0x0)
executing program 2:
r0 = syz_open_dev$radio(&(0x7f0000000040), 0x2, 0x2)
ioctl$VIDIOC_S_HW_FREQ_SEEK(r0, 0x40305652, &(0x7f00000000c0)={0x0, 0x1, 0x0, 0x0, 0x0, 0x2080, 0x6ae0})
executing program 3:
r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
ioctl$SIOCX25GCALLUSERDATA(r0, 0x89e4, &(0x7f0000000000)={0x3c, "59e99883df33215e5152253aa58fd5d0aebaf7742d05b65372f5a90abd56aba79008d9000fa0b7a266d1b1de4a08665c486cbc257101d3543b9fb2d8a536f541a27c382b81578bde42c5088f4d02f2b85d1c041575f19ce0f8b735e8678a1bd2c6b87cc8c38f09d150ed604dec21effd9de5394fef241ca2bf6e50c0d1a0c61a"})
executing program 3:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FASTOPEN_KEY(r0, 0x6, 0x21, &(0x7f0000000040)="5766b1b827f600333b09d3748ee7d700", 0x10)
executing program 0:
r0 = openat$nvram(0xffffffffffffff9c, &(0x7f0000006bc0), 0x0, 0x0)
ioctl$BTRFS_IOC_SNAP_CREATE_V2(r0, 0x7041, 0x0)
executing program 1:
r0 = socket$key(0xf, 0x3, 0x2)
sendmsg$key(r0, &(0x7f00000014c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)={0x2, 0xf, 0x0, 0x0, 0xa, 0x0, 0x0, 0x0, [@sadb_address={0x5, 0x5, 0x0, 0x0, 0x0, @in6={0xa, 0x0, 0x0, @private1={0xfc, 0x1, '\x00', 0x1}}}, @sadb_address={0x3, 0x6, 0x0, 0x0, 0x0, @in={0x2, 0x4e24, @rand_addr=0x64010101}}]}, 0x50}}, 0x20090)
executing program 2:
r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000001b80), 0x0, 0x0)
ioctl$SOUND_PCM_READ_RATE(r0, 0x80045002, &(0x7f0000001bc0))
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWTABLE={0x20, 0x0, 0xa, 0x5, 0x0, 0x0, {0x7}, [@NFTA_TABLE_NAME={0x9, 0x1, 'syz0\x00'}]}, @NFT_MSG_NEWSET={0x48, 0x9, 0xa, 0x401, 0x0, 0x0, {0x7}, [@NFTA_SET_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_SET_DESC={0xc, 0x9, 0x0, 0x1, [@NFTA_SET_DESC_SIZE={0x8, 0x1, 0x1, 0x0, 0x60000002}]}, @NFTA_SET_KEY_LEN={0x8, 0x5, 0x1, 0x0, 0x2d}, @NFTA_SET_ID={0x8}, @NFTA_SET_NAME={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x10, 0x1, 0x0, 0x0, {0x0, 0x84}}}, 0x90}, 0x1, 0x0, 0x0, 0x20000080}, 0x0)
executing program 1:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
executing program 3:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000040)=ANY=[@ANYBLOB="f80000003e000701feffffff00000000017c0000040042800c00018006000600800a0000d1000280cb001480c7000d"], 0xf8}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
program did not crash
replaying the whole log did not cause a kernel crash
single: executing 4 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$nl_generic-sendmsg$nl_generic
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000040)=ANY=[@ANYBLOB="f80000003e000701feffffff00000000017c0000040042800c00018006000600800a0000d1000280cb001480c7000d"], 0xf8}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWTABLE={0x20, 0x0, 0xa, 0x5, 0x0, 0x0, {0x7}, [@NFTA_TABLE_NAME={0x9, 0x1, 'syz0\x00'}]}, @NFT_MSG_NEWSET={0x48, 0x9, 0xa, 0x401, 0x0, 0x0, {0x7}, [@NFTA_SET_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_SET_DESC={0xc, 0x9, 0x0, 0x1, [@NFTA_SET_DESC_SIZE={0x8, 0x1, 0x1, 0x0, 0x60000002}]}, @NFTA_SET_KEY_LEN={0x8, 0x5, 0x1, 0x0, 0x2d}, @NFTA_SET_ID={0x8}, @NFTA_SET_NAME={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x10, 0x1, 0x0, 0x0, {0x0, 0x84}}}, 0x90}, 0x1, 0x0, 0x0, 0x20000080}, 0x0)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$dsp-ioctl$SOUND_PCM_READ_RATE
detailed listing:
executing program 0:
r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000001b80), 0x0, 0x0)
ioctl$SOUND_PCM_READ_RATE(r0, 0x80045002, &(0x7f0000001bc0))
program did not crash
single: failed to extract reproducer
bisect: bisecting 24 programs with base timeout 1m40s
testing program (duration=1m46s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]
detailed listing:
executing program 1:
r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
ioctl$SIOCX25SDTEFACILITIES(r0, 0x89eb, &(0x7f0000000000)={0x9, 0x9, 0x4, 0x6, 0x7, 0x3, 0xc, "ffbfd3928fb53131be033908979a61179f97309e", "9453715b3e75f01018f816a3ebc9322aaa532ac5"})
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000880)={0x18, 0x41, 0x107, 0x0, 0x25dfdbfc, {0x1, 0x7c}, [@nested={0x4, 0x31}]}, 0x18}}, 0x4010)
executing program 1:
r0 = openat$pidfd(0xffffffffffffff9c, &(0x7f0000000840), 0x0, 0x0)
lseek(r0, 0x5, 0x4)
executing program 1:
syz_clone3(&(0x7f0000000300)={0x140000000, 0x0, 0x0, 0x0, {0x2b}, 0x0, 0x0, 0x0, 0x0}, 0x58)
syz_clone(0x80000, 0x0, 0x0, 0x0, 0x0, 0x0)
executing program 3:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/protocols\x00')
read$FUSE(r0, &(0x7f0000000880)={0x2020}, 0x2020)
executing program 2:
r0 = syz_open_dev$vbi(&(0x7f0000000000), 0x1, 0x2)
ioctl$VIDIOC_G_EXT_CTRLS(r0, 0xc0205647, &(0x7f0000000100)={0xf000000, 0x1, 0x0, 0xffffffffffffffff, 0x0, &(0x7f0000000080)={0x98f90b, 0xffffc002, '\x00', @p_u8=&(0x7f0000000280)}})
executing program 0:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
setsockopt$bt_BT_FLUSHABLE(r0, 0x112, 0x8, 0x0, 0x0)
executing program 2:
r0 = socket(0x1e, 0x5, 0x0)
setsockopt$packet_tx_ring(r0, 0x10f, 0x87, 0x0, 0x0)
executing program 3:
r0 = syz_open_dev$vim2m(&(0x7f00000006c0), 0x8, 0x2)
ppoll(&(0x7f00000000c0)=[{r0, 0x8000}], 0x1, &(0x7f0000000100), &(0x7f0000000140)={[0x1]}, 0x8)
executing program 0:
r0 = memfd_create(&(0x7f00000000c0)='[\v\xdbX\xae[\x1a\xa9\xfd\xfa\xad\xd1md\xc8\x85HX\xa9%\f\x1ae\xe0\x00\x00\x00\x00\xfb\xff\x00\x00\x81\x9eG\xd9,\xe2\xc6a\x9f\xe8\xf1\xb3\x86\xe2+Op\xd0\xa2\x82\x1eb;(\xb5\xe1jS\xd6\x91%||\xa0\x8ez\xadT\xc8\f\xe5\x89\xbf3:\x99\x1e\xac`\xc3\xcf\xd3\xae\xd2\a\x11\xa9\xa5^\xff\xf5\x95\xd2q#\xc6\xca\x97\x9d\xcb\x1e\x80\xd6\xd5%N&\xf8#\x80z8Z\xd2}\xf5\xe4\x9f5\x9b\x01\xf9t\xbb\x1er\x14\xdb\xd3\xcd\xfd\xbdnC\xec', 0x0)
fsetxattr$security_ima(r0, &(0x7f0000000040), &(0x7f0000000080)=ANY=[@ANYBLOB="06"], 0x2, 0x0)
executing program 2:
r0 = syz_open_dev$video4linux(&(0x7f0000000080), 0x0, 0x0)
ioctl$VIDIOC_SUBSCRIBE_EVENT(r0, 0x4020565a, &(0x7f00000000c0))
executing program 0:
r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f00000000c0), 0x0)
ioctl$SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT(r0, 0xc0a85352, &(0x7f0000000200)={{0x80}, 'port0\x00'})
executing program 3:
r0 = openat$ipvs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/net/ipv4/vs/sync_threshold\x00', 0x2, 0x0)
preadv(r0, &(0x7f00000041c0)=[{&(0x7f0000001040)=""/102, 0x5}], 0x2, 0x0, 0x0)
executing program 2:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)=[{&(0x7f0000000100)="5c00000013006bec9e3be35c6e17aa31076b876c1d0000007ea60864160af36507001ac00400020208000c000300010004000000eab556a705251e618294ff0051f60a84c9f4d4938037e786a6d0000300000000000200ffffc6c953", 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x20040090)
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000900)=ANY=[@ANYBLOB="2800000014001901000000000000000228"], 0x28}}, 0x0)
executing program 2:
r0 = syz_open_dev$radio(&(0x7f0000000040), 0x2, 0x2)
ioctl$VIDIOC_S_HW_FREQ_SEEK(r0, 0x40305652, &(0x7f00000000c0)={0x0, 0x1, 0x0, 0x0, 0x0, 0x2080, 0x6ae0})
executing program 3:
r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
ioctl$SIOCX25GCALLUSERDATA(r0, 0x89e4, &(0x7f0000000000)={0x3c, "59e99883df33215e5152253aa58fd5d0aebaf7742d05b65372f5a90abd56aba79008d9000fa0b7a266d1b1de4a08665c486cbc257101d3543b9fb2d8a536f541a27c382b81578bde42c5088f4d02f2b85d1c041575f19ce0f8b735e8678a1bd2c6b87cc8c38f09d150ed604dec21effd9de5394fef241ca2bf6e50c0d1a0c61a"})
executing program 3:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FASTOPEN_KEY(r0, 0x6, 0x21, &(0x7f0000000040)="5766b1b827f600333b09d3748ee7d700", 0x10)
executing program 0:
r0 = openat$nvram(0xffffffffffffff9c, &(0x7f0000006bc0), 0x0, 0x0)
ioctl$BTRFS_IOC_SNAP_CREATE_V2(r0, 0x7041, 0x0)
executing program 1:
r0 = socket$key(0xf, 0x3, 0x2)
sendmsg$key(r0, &(0x7f00000014c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)={0x2, 0xf, 0x0, 0x0, 0xa, 0x0, 0x0, 0x0, [@sadb_address={0x5, 0x5, 0x0, 0x0, 0x0, @in6={0xa, 0x0, 0x0, @private1={0xfc, 0x1, '\x00', 0x1}}}, @sadb_address={0x3, 0x6, 0x0, 0x0, 0x0, @in={0x2, 0x4e24, @rand_addr=0x64010101}}]}, 0x50}}, 0x20090)
executing program 2:
r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000001b80), 0x0, 0x0)
ioctl$SOUND_PCM_READ_RATE(r0, 0x80045002, &(0x7f0000001bc0))
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWTABLE={0x20, 0x0, 0xa, 0x5, 0x0, 0x0, {0x7}, [@NFTA_TABLE_NAME={0x9, 0x1, 'syz0\x00'}]}, @NFT_MSG_NEWSET={0x48, 0x9, 0xa, 0x401, 0x0, 0x0, {0x7}, [@NFTA_SET_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_SET_DESC={0xc, 0x9, 0x0, 0x1, [@NFTA_SET_DESC_SIZE={0x8, 0x1, 0x1, 0x0, 0x60000002}]}, @NFTA_SET_KEY_LEN={0x8, 0x5, 0x1, 0x0, 0x2d}, @NFTA_SET_ID={0x8}, @NFTA_SET_NAME={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x10, 0x1, 0x0, 0x0, {0x0, 0x84}}}, 0x90}, 0x1, 0x0, 0x0, 0x20000080}, 0x0)
executing program 1:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
executing program 3:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000040)=ANY=[@ANYBLOB="f80000003e000701feffffff00000000017c0000040042800c00018006000600800a0000d1000280cb001480c7000d"], 0xf8}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
program did not crash
replaying the whole log did not cause a kernel crash
single: executing 4 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$nl_generic-sendmsg$nl_generic
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000040)=ANY=[@ANYBLOB="f80000003e000701feffffff00000000017c0000040042800c00018006000600800a0000d1000280cb001480c7000d"], 0xf8}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program crashed: KASAN: slab-use-after-free Write in flush_tlb_func
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc
detailed listing:
executing program 0:
socket$inet_smc(0x2b, 0x1, 0x0)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): setsockopt$inet_tcp_int
detailed listing:
executing program 0:
setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, 0x0, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program crashed: KASAN: slab-use-after-free Write in flush_tlb_func
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program crashed: KASAN: slab-use-after-free Write in flush_tlb_func
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program crashed: KASAN: slab-use-after-free Write in flush_tlb_func
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$inet_smc-setsockopt$inet_tcp_int
detailed listing:
executing program 0:
r0 = socket$inet_smc(0x2b, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x2d, &(0x7f0000000140)=0x5, 0x4)
program did not crash
validation run: crashed=false
reproducing took 2h32m11.688024775s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_write include/linux/instrumented.h:82 [inline]
BUG: KASAN: slab-use-after-free in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
BUG: KASAN: slab-use-after-free in cpumask_clear_cpu include/linux/cpumask.h:628 [inline]
BUG: KASAN: slab-use-after-free in flush_tlb_func+0x23d/0x6c0 arch/x86/mm/tlb.c:1132
Write of size 8 at addr ffff888034d014c0 by task kworker/u9:3/5946
CPU: 0 UID: 0 PID: 5946 Comm: kworker/u9:3 Not tainted 6.16.0-rc4-next-20250630-syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: hci2 hci_cmd_timeout
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:408 [inline]
print_report+0xd2/0x2b0 mm/kasan/report.c:521
kasan_report+0x118/0x150 mm/kasan/report.c:634
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:189
instrument_atomic_write include/linux/instrumented.h:82 [inline]
clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
cpumask_clear_cpu include/linux/cpumask.h:628 [inline]
flush_tlb_func+0x23d/0x6c0 arch/x86/mm/tlb.c:1132
csd_do_func kernel/smp.c:134 [inline]
__flush_smp_call_function_queue+0x370/0xaa0 kernel/smp.c:540
__sysvec_call_function_single+0xa8/0x3d0 arch/x86/kernel/smp.c:271
instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline]
sysvec_call_function_single+0x9e/0xc0 arch/x86/kernel/smp.c:266
asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:console_flush_all+0x7f7/0xc40 kernel/printk/printk.c:3227
Code: 48 21 c3 0f 85 e9 01 00 00 e8 65 2d 1f 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 56 2d 1f 00 eb 06 e8 4f 2d 1f 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 3a 41 83 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc90003e07500 EFLAGS: 00000293
RAX: 1ffffffff1d78deb RBX: ffffffff8ebc6f58 RCX: ffff88802a57bc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003e07650 R08: ffffffff8fc29737 R09: 1ffffffff1f852e6
R10: dffffc0000000000 R11: fffffbfff1f852e7 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8ebc6f00
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0xc4/0x270 kernel/printk/printk.c:3325
vprintk_emit+0x5b7/0x7a0 kernel/printk/printk.c:2450
_printk+0xcf/0x120 kernel/printk/printk.c:2475
bt_err+0x10b/0x160 net/bluetooth/lib.c:296
hci_cmd_timeout+0xff/0x1e0 net/bluetooth/hci_core.c:1473
process_one_work kernel/workqueue.c:3239 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3322
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3403
kthread+0x70e/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Allocated by task 13181:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:319 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4180 [inline]
slab_alloc_node mm/slub.c:4229 [inline]
kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4236
dup_mm kernel/fork.c:1466 [inline]
copy_mm+0xdb/0x4b0 kernel/fork.c:1528
copy_process+0x1706/0x3c00 kernel/fork.c:2168
kernel_clone+0x21e/0x870 kernel/fork.c:2598
__do_sys_clone kernel/fork.c:2741 [inline]
__se_sys_clone kernel/fork.c:2725 [inline]
__x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2725
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 14923:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x62/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2417 [inline]
slab_free mm/slub.c:4680 [inline]
kmem_cache_free+0x18f/0x400 mm/slub.c:4782
exit_mm+0x1da/0x2c0 kernel/exit.c:581
do_exit+0x648/0x2300 kernel/exit.c:947
do_group_exit+0x21c/0x2d0 kernel/exit.c:1100
__do_sys_exit_group kernel/exit.c:1111 [inline]
__se_sys_exit_group kernel/exit.c:1109 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109
x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff888034d00ac0
which belongs to the cache mm_struct of size 2584
The buggy address is located 2560 bytes inside of
freed 2584-byte region [ffff888034d00ac0, ffff888034d014d8)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34d00
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888034d1bc01
ksm flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801a84bb40 ffffea0000a1ec00 dead000000000003
raw: 0000000000000000 00000000800b000b 00000000f5000000 ffff888034d1bc01
head: 00fff00000000040 ffff88801a84bb40 ffffea0000a1ec00 dead000000000003
head: 0000000000000000 00000000800b000b 00000000f5000000 ffff888034d1bc01
head: 00fff00000000003 ffffea0000d34001 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5325, tgid 5325 (udevd), ts 34066317022, free_ts 33930030005
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1848
prep_new_page mm/page_alloc.c:1856 [inline]
get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3855
__alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5145
alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
alloc_slab_page mm/slub.c:2487 [inline]
allocate_slab+0x8a/0x370 mm/slub.c:2655
new_slab mm/slub.c:2709 [inline]
___slab_alloc+0xbeb/0x1410 mm/slub.c:3891
__slab_alloc mm/slub.c:3981 [inline]
__slab_alloc_node mm/slub.c:4056 [inline]
slab_alloc_node mm/slub.c:4217 [inline]
kmem_cache_alloc_noprof+0x283/0x3c0 mm/slub.c:4236
mm_alloc+0x23/0xd0 kernel/fork.c:1103
bprm_mm_init fs/exec.c:258 [inline]
alloc_bprm+0x378/0x5b0 fs/exec.c:1461
do_execveat_common+0x1b3/0x6a0 fs/exec.c:1806
do_execve fs/exec.c:1929 [inline]
__do_sys_execve fs/exec.c:2005 [inline]
__se_sys_execve fs/exec.c:2000 [inline]
__x64_sys_execve+0x94/0xb0 fs/exec.c:2000
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5319 tgid 5319 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1392 [inline]
__free_frozen_pages+0xb80/0xd80 mm/page_alloc.c:2892
discard_slab mm/slub.c:2753 [inline]
__put_partials+0x156/0x1a0 mm/slub.c:3218
put_cpu_partial+0x17c/0x250 mm/slub.c:3293
__slab_free+0x2d5/0x3c0 mm/slub.c:4550
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4180 [inline]
slab_alloc_node mm/slub.c:4229 [inline]
kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4236
getname_flags+0xb8/0x540 fs/namei.c:146
getname include/linux/fs.h:2909 [inline]
__do_sys_execve fs/exec.c:2005 [inline]
__se_sys_execve fs/exec.c:2000 [inline]
__x64_sys_execve+0x7a/0xb0 fs/exec.c:2000
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888034d01380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888034d01400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888034d01480: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
^
ffff888034d01500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888034d01580: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 48 21 c3 and %rax,%rbx
3: 0f 85 e9 01 00 00 jne 0x1f2
9: e8 65 2d 1f 00 call 0x1f2d73
e: 48 8b 5c 24 20 mov 0x20(%rsp),%rbx
13: 4d 85 f6 test %r14,%r14
16: 75 07 jne 0x1f
18: e8 56 2d 1f 00 call 0x1f2d73
1d: eb 06 jmp 0x25
1f: e8 4f 2d 1f 00 call 0x1f2d73
24: fb sti
25: 48 8b 44 24 28 mov 0x28(%rsp),%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 3a 41 83 00 call 0x834173
39: 48 8b 1b mov (%rbx),%rbx
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 44 rex.R
3f: 24 .byte 0x24
final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_write include/linux/instrumented.h:82 [inline]
BUG: KASAN: slab-use-after-free in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
BUG: KASAN: slab-use-after-free in cpumask_clear_cpu include/linux/cpumask.h:628 [inline]
BUG: KASAN: slab-use-after-free in flush_tlb_func+0x23d/0x6c0 arch/x86/mm/tlb.c:1132
Write of size 8 at addr ffff888034d014c0 by task kworker/u9:3/5946
CPU: 0 UID: 0 PID: 5946 Comm: kworker/u9:3 Not tainted 6.16.0-rc4-next-20250630-syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: hci2 hci_cmd_timeout
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:408 [inline]
print_report+0xd2/0x2b0 mm/kasan/report.c:521
kasan_report+0x118/0x150 mm/kasan/report.c:634
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:189
instrument_atomic_write include/linux/instrumented.h:82 [inline]
clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
cpumask_clear_cpu include/linux/cpumask.h:628 [inline]
flush_tlb_func+0x23d/0x6c0 arch/x86/mm/tlb.c:1132
csd_do_func kernel/smp.c:134 [inline]
__flush_smp_call_function_queue+0x370/0xaa0 kernel/smp.c:540
__sysvec_call_function_single+0xa8/0x3d0 arch/x86/kernel/smp.c:271
instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline]
sysvec_call_function_single+0x9e/0xc0 arch/x86/kernel/smp.c:266
asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:console_flush_all+0x7f7/0xc40 kernel/printk/printk.c:3227
Code: 48 21 c3 0f 85 e9 01 00 00 e8 65 2d 1f 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 56 2d 1f 00 eb 06 e8 4f 2d 1f 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 3a 41 83 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc90003e07500 EFLAGS: 00000293
RAX: 1ffffffff1d78deb RBX: ffffffff8ebc6f58 RCX: ffff88802a57bc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003e07650 R08: ffffffff8fc29737 R09: 1ffffffff1f852e6
R10: dffffc0000000000 R11: fffffbfff1f852e7 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8ebc6f00
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0xc4/0x270 kernel/printk/printk.c:3325
vprintk_emit+0x5b7/0x7a0 kernel/printk/printk.c:2450
_printk+0xcf/0x120 kernel/printk/printk.c:2475
bt_err+0x10b/0x160 net/bluetooth/lib.c:296
hci_cmd_timeout+0xff/0x1e0 net/bluetooth/hci_core.c:1473
process_one_work kernel/workqueue.c:3239 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3322
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3403
kthread+0x70e/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Allocated by task 13181:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:319 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4180 [inline]
slab_alloc_node mm/slub.c:4229 [inline]
kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4236
dup_mm kernel/fork.c:1466 [inline]
copy_mm+0xdb/0x4b0 kernel/fork.c:1528
copy_process+0x1706/0x3c00 kernel/fork.c:2168
kernel_clone+0x21e/0x870 kernel/fork.c:2598
__do_sys_clone kernel/fork.c:2741 [inline]
__se_sys_clone kernel/fork.c:2725 [inline]
__x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2725
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 14923:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x62/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2417 [inline]
slab_free mm/slub.c:4680 [inline]
kmem_cache_free+0x18f/0x400 mm/slub.c:4782
exit_mm+0x1da/0x2c0 kernel/exit.c:581
do_exit+0x648/0x2300 kernel/exit.c:947
do_group_exit+0x21c/0x2d0 kernel/exit.c:1100
__do_sys_exit_group kernel/exit.c:1111 [inline]
__se_sys_exit_group kernel/exit.c:1109 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109
x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff888034d00ac0
which belongs to the cache mm_struct of size 2584
The buggy address is located 2560 bytes inside of
freed 2584-byte region [ffff888034d00ac0, ffff888034d014d8)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34d00
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888034d1bc01
ksm flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801a84bb40 ffffea0000a1ec00 dead000000000003
raw: 0000000000000000 00000000800b000b 00000000f5000000 ffff888034d1bc01
head: 00fff00000000040 ffff88801a84bb40 ffffea0000a1ec00 dead000000000003
head: 0000000000000000 00000000800b000b 00000000f5000000 ffff888034d1bc01
head: 00fff00000000003 ffffea0000d34001 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5325, tgid 5325 (udevd), ts 34066317022, free_ts 33930030005
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1848
prep_new_page mm/page_alloc.c:1856 [inline]
get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3855
__alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5145
alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
alloc_slab_page mm/slub.c:2487 [inline]
allocate_slab+0x8a/0x370 mm/slub.c:2655
new_slab mm/slub.c:2709 [inline]
___slab_alloc+0xbeb/0x1410 mm/slub.c:3891
__slab_alloc mm/slub.c:3981 [inline]
__slab_alloc_node mm/slub.c:4056 [inline]
slab_alloc_node mm/slub.c:4217 [inline]
kmem_cache_alloc_noprof+0x283/0x3c0 mm/slub.c:4236
mm_alloc+0x23/0xd0 kernel/fork.c:1103
bprm_mm_init fs/exec.c:258 [inline]
alloc_bprm+0x378/0x5b0 fs/exec.c:1461
do_execveat_common+0x1b3/0x6a0 fs/exec.c:1806
do_execve fs/exec.c:1929 [inline]
__do_sys_execve fs/exec.c:2005 [inline]
__se_sys_execve fs/exec.c:2000 [inline]
__x64_sys_execve+0x94/0xb0 fs/exec.c:2000
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5319 tgid 5319 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1392 [inline]
__free_frozen_pages+0xb80/0xd80 mm/page_alloc.c:2892
discard_slab mm/slub.c:2753 [inline]
__put_partials+0x156/0x1a0 mm/slub.c:3218
put_cpu_partial+0x17c/0x250 mm/slub.c:3293
__slab_free+0x2d5/0x3c0 mm/slub.c:4550
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4180 [inline]
slab_alloc_node mm/slub.c:4229 [inline]
kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4236
getname_flags+0xb8/0x540 fs/namei.c:146
getname include/linux/fs.h:2909 [inline]
__do_sys_execve fs/exec.c:2005 [inline]
__se_sys_execve fs/exec.c:2000 [inline]
__x64_sys_execve+0x7a/0xb0 fs/exec.c:2000
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888034d01380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888034d01400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888034d01480: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
^
ffff888034d01500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888034d01580: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 48 21 c3 and %rax,%rbx
3: 0f 85 e9 01 00 00 jne 0x1f2
9: e8 65 2d 1f 00 call 0x1f2d73
e: 48 8b 5c 24 20 mov 0x20(%rsp),%rbx
13: 4d 85 f6 test %r14,%r14
16: 75 07 jne 0x1f
18: e8 56 2d 1f 00 call 0x1f2d73
1d: eb 06 jmp 0x25
1f: e8 4f 2d 1f 00 call 0x1f2d73
24: fb sti
25: 48 8b 44 24 28 mov 0x28(%rsp),%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 3a 41 83 00 call 0x834173
39: 48 8b 1b mov (%rbx),%rbx
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 44 rex.R
3f: 24 .byte 0x24