Extracting prog: 2m40.054964512s Minimizing prog: 1h37m11.693166418s Simplifying prog options: 0s Extracting C: 3m39.457147322s Simplifying C: 22m9.714201119s extracting reproducer from 66 programs testing a last program of every proc single: executing 18 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi-ioctl$COMEDI_INSN-pipe2-write$UHID_SET_REPORT_REPLY-sendmsg$NFT_BATCH-syz_open_dev$vim2m-ioctl$vim2m_VIDIOC_G_FMT-socket$nl_netfilter detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) r4 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) ioctl$COMEDI_INSN(r4, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) pipe2(&(0x7f0000000000)={0xffffffffffffffff}, 0x4000) write$UHID_SET_REPORT_REPLY(r5, &(0x7f0000000040)={0xe, {0x0, 0x2, 0x3, 0xa4, "476101b291b1273b3a22509285692a3ad5099098574eda196b4ac3896df53d1309558826f481123bfaddacb040caaed299323e63c7d5e2c41a9bc2d9792b5ebd95caf9e822b3bbb638d9c2fb16d75690b3a5fef4b3209e54204e19ad89e8f57a7f87bde92e9f1cd110ec1c0d02bcf22c2358ba03b53ad7307f19d5f3db05a0fd3f50cd415d0c9d4cfb86a7952a6bbbc380187fbab2cdc7627f71637a4cd440b637505ecb"}}, 0xb0) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000009b40)={0x0, 0x0, &(0x7f0000009b00)={&(0x7f0000000300)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a44000000090a010400000000000000000a0000040900010073797a310000000008000540000000020000000073"], 0xac}, 0x1, 0x0, 0x0, 0x4000850}, 0x40) r6 = syz_open_dev$vim2m(&(0x7f0000000040), 0x404, 0x2) ioctl$vim2m_VIDIOC_G_FMT(r6, 0xc0d05604, &(0x7f00000001c0)={0xa, @pix={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100000}}) socket$nl_netfilter(0x10, 0x3, 0xc) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open single: successfully extracted reproducer found reproducer with 22 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi-ioctl$COMEDI_INSN-pipe2-write$UHID_SET_REPORT_REPLY-sendmsg$NFT_BATCH-syz_open_dev$vim2m-ioctl$vim2m_VIDIOC_G_FMT detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) r4 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) ioctl$COMEDI_INSN(r4, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) pipe2(&(0x7f0000000000)={0xffffffffffffffff}, 0x4000) write$UHID_SET_REPORT_REPLY(r5, &(0x7f0000000040)={0xe, {0x0, 0x2, 0x3, 0xa4, "476101b291b1273b3a22509285692a3ad5099098574eda196b4ac3896df53d1309558826f481123bfaddacb040caaed299323e63c7d5e2c41a9bc2d9792b5ebd95caf9e822b3bbb638d9c2fb16d75690b3a5fef4b3209e54204e19ad89e8f57a7f87bde92e9f1cd110ec1c0d02bcf22c2358ba03b53ad7307f19d5f3db05a0fd3f50cd415d0c9d4cfb86a7952a6bbbc380187fbab2cdc7627f71637a4cd440b637505ecb"}}, 0xb0) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000009b40)={0x0, 0x0, &(0x7f0000009b00)={&(0x7f0000000300)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a44000000090a010400000000000000000a0000040900010073797a310000000008000540000000020000000073"], 0xac}, 0x1, 0x0, 0x0, 0x4000850}, 0x40) r6 = syz_open_dev$vim2m(&(0x7f0000000040), 0x404, 0x2) ioctl$vim2m_VIDIOC_G_FMT(r6, 0xc0d05604, &(0x7f00000001c0)={0xa, @pix={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100000}}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi-ioctl$COMEDI_INSN-pipe2-write$UHID_SET_REPORT_REPLY-sendmsg$NFT_BATCH-syz_open_dev$vim2m detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) r4 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) ioctl$COMEDI_INSN(r4, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) pipe2(&(0x7f0000000000)={0xffffffffffffffff}, 0x4000) write$UHID_SET_REPORT_REPLY(r5, &(0x7f0000000040)={0xe, {0x0, 0x2, 0x3, 0xa4, "476101b291b1273b3a22509285692a3ad5099098574eda196b4ac3896df53d1309558826f481123bfaddacb040caaed299323e63c7d5e2c41a9bc2d9792b5ebd95caf9e822b3bbb638d9c2fb16d75690b3a5fef4b3209e54204e19ad89e8f57a7f87bde92e9f1cd110ec1c0d02bcf22c2358ba03b53ad7307f19d5f3db05a0fd3f50cd415d0c9d4cfb86a7952a6bbbc380187fbab2cdc7627f71637a4cd440b637505ecb"}}, 0xb0) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000009b40)={0x0, 0x0, &(0x7f0000009b00)={&(0x7f0000000300)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a44000000090a010400000000000000000a0000040900010073797a310000000008000540000000020000000073"], 0xac}, 0x1, 0x0, 0x0, 0x4000850}, 0x40) syz_open_dev$vim2m(&(0x7f0000000040), 0x404, 0x2) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi-ioctl$COMEDI_INSN-pipe2-write$UHID_SET_REPORT_REPLY-sendmsg$NFT_BATCH detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) r4 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) ioctl$COMEDI_INSN(r4, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) pipe2(&(0x7f0000000000)={0xffffffffffffffff}, 0x4000) write$UHID_SET_REPORT_REPLY(r5, &(0x7f0000000040)={0xe, {0x0, 0x2, 0x3, 0xa4, "476101b291b1273b3a22509285692a3ad5099098574eda196b4ac3896df53d1309558826f481123bfaddacb040caaed299323e63c7d5e2c41a9bc2d9792b5ebd95caf9e822b3bbb638d9c2fb16d75690b3a5fef4b3209e54204e19ad89e8f57a7f87bde92e9f1cd110ec1c0d02bcf22c2358ba03b53ad7307f19d5f3db05a0fd3f50cd415d0c9d4cfb86a7952a6bbbc380187fbab2cdc7627f71637a4cd440b637505ecb"}}, 0xb0) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000009b40)={0x0, 0x0, &(0x7f0000009b00)={&(0x7f0000000300)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a44000000090a010400000000000000000a0000040900010073797a310000000008000540000000020000000073"], 0xac}, 0x1, 0x0, 0x0, 0x4000850}, 0x40) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi-ioctl$COMEDI_INSN-pipe2-write$UHID_SET_REPORT_REPLY detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) r4 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) ioctl$COMEDI_INSN(r4, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) pipe2(&(0x7f0000000000)={0xffffffffffffffff}, 0x4000) write$UHID_SET_REPORT_REPLY(r5, &(0x7f0000000040)={0xe, {0x0, 0x2, 0x3, 0xa4, "476101b291b1273b3a22509285692a3ad5099098574eda196b4ac3896df53d1309558826f481123bfaddacb040caaed299323e63c7d5e2c41a9bc2d9792b5ebd95caf9e822b3bbb638d9c2fb16d75690b3a5fef4b3209e54204e19ad89e8f57a7f87bde92e9f1cd110ec1c0d02bcf22c2358ba03b53ad7307f19d5f3db05a0fd3f50cd415d0c9d4cfb86a7952a6bbbc380187fbab2cdc7627f71637a4cd440b637505ecb"}}, 0xb0) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi-ioctl$COMEDI_INSN-pipe2 detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) r4 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) ioctl$COMEDI_INSN(r4, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) pipe2(&(0x7f0000000000), 0x4000) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) r4 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) ioctl$COMEDI_INSN(r4, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-openat$comedi detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) openat$comedi(0xffffffffffffff9c, &(0x7f0000000140)='/dev/comedi4\x00', 0x2, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$KVM_GET_MSRS_sys-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) r3 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$KVM_GET_MSRS_sys(r3, 0xc008ae88, &(0x7f0000000140)={0x1, 0x0, [{0xce, 0x0, 0x6}]}) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-openat$kvm-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-setsockopt-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r2, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) setsockopt(r1, 0x84, 0x81, &(0x7f00000002c0)="1a00000002000000", 0x8) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-syz_usb_control_io$hid-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r1, 0x2a91, 0x7ff) syz_usb_control_io$hid(r0, &(0x7f00000005c0)={0x24, &(0x7f0000000380)={0x0, 0x22, 0xbc, {0xbc, 0x30, "424aa040aa60544c5625f7ba62dd31d87b522015fd05cbcbce21cb8444d9fae698b29355b3480f0fa2f2b85b83755d4a1dde766bbdee20af2ae3d09e9c3d78ff36eea4fef81ec8639161b2237d91ebe0ea65ed5ceb43b838fb7b24d02ae3c2f3145cd12b992debfbdbf94c1b6788eae9bd423c7ed5f52d7ccaef17a760ede96636e1821a39c00a28ca7b417a38c092167c0d72c95003b136285ca398dac2e131df42a0bb933a221074644bba36296438bdc4717b2ce5941b65d1"}}, &(0x7f0000000480)={0x0, 0x3, 0xa9, @string={0xa9, 0x3, "dada0150b146a7e2ca8f03e1513eedeb5c9bb0f7edbed1c39ba330490f0c4c9f36dbe6fd5e0078b734ea8cedb271b8cc88b89292756de4971d882c4b8a8f1ed230438f8564f2a27b61007076f504c6b1fc8d3169feab5b907123fda538c253a102722ddd00435824660eb6033f659555e6d3ecb72f3e29a018ea6f92c14bcc06cf9f98c0f81f01908c34b3625362cd438729212d568dd97ee2c98858598da2d81767bf2f9e0114"}}, &(0x7f0000000540)={0x0, 0x22, 0x18, {[@main=@item_012={0x2, 0x0, 0x8, "3c97"}, @local=@item_4={0x3, 0x2, 0x7, "25f82042"}, @main=@item_4={0x3, 0x0, 0x8, "fde813dd"}, @global=@item_012={0x0, 0x1, 0xa}, @local=@item_4={0x3, 0x2, 0xa, "d18c6412"}, @global=@item_4={0x3, 0x1, 0x5, "03e59af9"}]}}, &(0x7f0000000580)={0x0, 0x21, 0x9, {0x9, 0x21, 0x1, 0x3, 0x1, {0x22, 0x5ed}}}}, &(0x7f0000000880)={0x2c, &(0x7f0000000740)={0x40, 0xc, 0xa3, "f6d3609d63b4e586813004aaf8f0a09772e0760693c49ea1432e8960d98efc437833f9e5a80de19fa6506ecbf0737f557ff411e6d05ee3f1c8e283dbeee9e08607431cefe14c38c8703419895e48565f24e0634ebb9af15debeb724199a8f05f6f81957fb56b4f92dda0885f60b26bfd4d26da437b473c6356793a576b39c47775cd805bdb3874e7122848f6181f86d2ca61d7b6e226d507c143bb36bf7a546a88d42d"}, &(0x7f0000000600)={0x0, 0xa, 0x1, 0x95}, &(0x7f0000000640)={0x0, 0x8, 0x1, 0x31}, &(0x7f0000000800)={0x20, 0x1, 0x2a, "1d61b79783423e21ae021997e948a97d42a69f5d76e849cc8c47159bbf4901aca59ccb6c98560ebfd9ba"}, &(0x7f0000000840)={0x20, 0x3, 0x1, 0xa}}) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-readahead-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) readahead(r1, 0x2a91, 0x7ff) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$nullb-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x147c40, 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) socket$inet6_sctp(0xa, 0x1, 0x84) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x9, 0x2, 0x7fff7ffc}]}) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-socket$inet6_sctp-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) socket$inet6_sctp(0xa, 0x1, 0x84) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000680)={0x84, &(0x7f0000000240)={0x40, 0x8, 0x2, "ec0a"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-syz_usb_control_io$hid-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-ioctl$COMEDI_INSN detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$COMEDI_INSN detailed listing: executing program 0: ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, 0x0, 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0x0, 0x0, 0x1, 0x4000003}) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program did not crash validation run: crashed=false testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open validation run: crashed=true testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open validation run: crashed=true testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$COMEDI_INSN detailed listing: executing program 0: syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0) ioctl$COMEDI_INSN(0xffffffffffffffff, 0x8028640c, &(0x7f0000000000)={0xc000003, 0xf, &(0x7f0000000180)=[0x1a, 0xfff, 0xf909, 0x899d, 0x80, 0x6, 0x7, 0x812, 0xfffffe01, 0x1, 0x8c, 0xffffffff, 0x6, 0x5, 0x0], 0x1, 0x4000003}) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open validation run: crashed=true reproducing took 2h20m53.282736029s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] BUG: KASAN: slab-use-after-free in v4l2_fh_open+0xab/0x420 drivers/media/v4l2-core/v4l2-fh.c:64 Read of size 8 at addr ffff88803d0b0820 by task v4l_id/6199 CPU: 1 UID: 0 PID: 6199 Comm: v4l_id Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] v4l2_fh_open+0xab/0x420 drivers/media/v4l2-core/v4l2-fh.c:64 em28xx_v4l2_open+0x157/0x9a0 drivers/media/usb/em28xx/em28xx-video.c:2153 v4l2_open+0x1c2/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:433 chrdev_open+0x4cf/0x5e0 fs/char_dev.c:414 do_dentry_open+0x7d0/0x1270 fs/open.c:962 vfs_open+0x3b/0x350 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x342a/0x3df0 fs/namei.c:4787 do_filp_open+0x1fa/0x410 fs/namei.c:4814 do_sys_openat2+0x121/0x200 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1447 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc43d727407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffcf2293730 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fc43d639880 RCX: 00007fc43d727407 RDX: 0000000000000000 RSI: 00007ffcf2294f1c RDI: ffffffffffffff9c RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffcf2293980 R14: 00007fc43debd000 R15: 000055ee2c2904d8 Allocated by task 6133: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x1fb/0x6d0 mm/slub.c:5776 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] em28xx_v4l2_init+0x10b/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2532 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Freed by task 6133: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2540 [inline] slab_free mm/slub.c:6670 [inline] kfree+0x1bd/0x900 mm/slub.c:6878 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2118 [inline] kref_put include/linux/kref.h:65 [inline] em28xx_v4l2_init+0x1683/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2901 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 The buggy address belongs to the object at ffff88803d0b0000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 2080 bytes inside of freed 8192-byte region [ffff88803d0b0000, ffff88803d0b2000) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3d0b0 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 ksm flags: 0x80000000000040(head|node=0|zone=1) page_type: f5(slab) raw: 0080000000000040 ffff88813ff27280 ffffea00008bb400 0000000000000003 raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 head: 0080000000000040 ffff88813ff27280 ffffea00008bb400 0000000000000003 head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 head: 0080000000000003 ffffea0000f42c01 00000000ffffffff 00000000ffffffff head: 0000000000000000 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 5888, tgid 5888 (syz-executor), ts 192847336455, free_ts 192811260372 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1857 prep_new_page mm/page_alloc.c:1865 [inline] get_page_from_freelist+0x28c0/0x2960 mm/page_alloc.c:3915 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5210 alloc_pages_mpol+0xd1/0x380 mm/mempolicy.c:2486 alloc_slab_page mm/slub.c:3075 [inline] allocate_slab+0x86/0x3b0 mm/slub.c:3248 new_slab mm/slub.c:3302 [inline] ___slab_alloc+0xb10/0x13e0 mm/slub.c:4656 __slab_alloc+0xc6/0x1f0 mm/slub.c:4779 __slab_alloc_node mm/slub.c:4855 [inline] slab_alloc_node mm/slub.c:5251 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_noprof+0x15f/0x7e0 mm/slub.c:5669 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] ops_init+0x7b/0x5c0 net/core/net_namespace.c:127 setup_net+0x110/0x330 net/core/net_namespace.c:446 copy_net_ns+0x3e3/0x570 net/core/net_namespace.c:581 create_new_namespaces+0x3e7/0x6a0 kernel/nsproxy.c:130 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:226 ksys_unshare+0x4c8/0x8c0 kernel/fork.c:3171 __do_sys_unshare kernel/fork.c:3242 [inline] __se_sys_unshare kernel/fork.c:3240 [inline] __x64_sys_unshare+0x38/0x50 kernel/fork.c:3240 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 page last free pid 5841 tgid 5841 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1406 [inline] __free_frozen_pages+0xfe1/0x1170 mm/page_alloc.c:2943 discard_slab mm/slub.c:3346 [inline] __put_partials+0x149/0x170 mm/slub.c:3886 __slab_free+0x2af/0x330 mm/slub.c:5952 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4953 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x23c/0x6f0 mm/slub.c:5315 kmalloc_reserve+0xbd/0x290 net/core/skbuff.c:586 __alloc_skb+0x204/0x3a0 net/core/skbuff.c:690 netlink_sendmsg+0x5c6/0xb30 net/netlink/af_netlink.c:1869 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x508/0x810 net/socket.c:2592 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1a1/0x260 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff88803d0b0700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88803d0b0780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88803d0b0800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88803d0b0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88803d0b0900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] BUG: KASAN: slab-use-after-free in v4l2_fh_open+0xab/0x420 drivers/media/v4l2-core/v4l2-fh.c:64 Read of size 8 at addr ffff88803d0b0820 by task v4l_id/6199 CPU: 1 UID: 0 PID: 6199 Comm: v4l_id Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] v4l2_fh_open+0xab/0x420 drivers/media/v4l2-core/v4l2-fh.c:64 em28xx_v4l2_open+0x157/0x9a0 drivers/media/usb/em28xx/em28xx-video.c:2153 v4l2_open+0x1c2/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:433 chrdev_open+0x4cf/0x5e0 fs/char_dev.c:414 do_dentry_open+0x7d0/0x1270 fs/open.c:962 vfs_open+0x3b/0x350 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x342a/0x3df0 fs/namei.c:4787 do_filp_open+0x1fa/0x410 fs/namei.c:4814 do_sys_openat2+0x121/0x200 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1447 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc43d727407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffcf2293730 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fc43d639880 RCX: 00007fc43d727407 RDX: 0000000000000000 RSI: 00007ffcf2294f1c RDI: ffffffffffffff9c RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffcf2293980 R14: 00007fc43debd000 R15: 000055ee2c2904d8 Allocated by task 6133: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x1fb/0x6d0 mm/slub.c:5776 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] em28xx_v4l2_init+0x10b/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2532 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Freed by task 6133: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2540 [inline] slab_free mm/slub.c:6670 [inline] kfree+0x1bd/0x900 mm/slub.c:6878 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2118 [inline] kref_put include/linux/kref.h:65 [inline] em28xx_v4l2_init+0x1683/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2901 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 The buggy address belongs to the object at ffff88803d0b0000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 2080 bytes inside of freed 8192-byte region [ffff88803d0b0000, ffff88803d0b2000) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3d0b0 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 ksm flags: 0x80000000000040(head|node=0|zone=1) page_type: f5(slab) raw: 0080000000000040 ffff88813ff27280 ffffea00008bb400 0000000000000003 raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 head: 0080000000000040 ffff88813ff27280 ffffea00008bb400 0000000000000003 head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 head: 0080000000000003 ffffea0000f42c01 00000000ffffffff 00000000ffffffff head: 0000000000000000 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 5888, tgid 5888 (syz-executor), ts 192847336455, free_ts 192811260372 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1857 prep_new_page mm/page_alloc.c:1865 [inline] get_page_from_freelist+0x28c0/0x2960 mm/page_alloc.c:3915 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5210 alloc_pages_mpol+0xd1/0x380 mm/mempolicy.c:2486 alloc_slab_page mm/slub.c:3075 [inline] allocate_slab+0x86/0x3b0 mm/slub.c:3248 new_slab mm/slub.c:3302 [inline] ___slab_alloc+0xb10/0x13e0 mm/slub.c:4656 __slab_alloc+0xc6/0x1f0 mm/slub.c:4779 __slab_alloc_node mm/slub.c:4855 [inline] slab_alloc_node mm/slub.c:5251 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_noprof+0x15f/0x7e0 mm/slub.c:5669 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] ops_init+0x7b/0x5c0 net/core/net_namespace.c:127 setup_net+0x110/0x330 net/core/net_namespace.c:446 copy_net_ns+0x3e3/0x570 net/core/net_namespace.c:581 create_new_namespaces+0x3e7/0x6a0 kernel/nsproxy.c:130 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:226 ksys_unshare+0x4c8/0x8c0 kernel/fork.c:3171 __do_sys_unshare kernel/fork.c:3242 [inline] __se_sys_unshare kernel/fork.c:3240 [inline] __x64_sys_unshare+0x38/0x50 kernel/fork.c:3240 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 page last free pid 5841 tgid 5841 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1406 [inline] __free_frozen_pages+0xfe1/0x1170 mm/page_alloc.c:2943 discard_slab mm/slub.c:3346 [inline] __put_partials+0x149/0x170 mm/slub.c:3886 __slab_free+0x2af/0x330 mm/slub.c:5952 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4953 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x23c/0x6f0 mm/slub.c:5315 kmalloc_reserve+0xbd/0x290 net/core/skbuff.c:586 __alloc_skb+0x204/0x3a0 net/core/skbuff.c:690 netlink_sendmsg+0x5c6/0xb30 net/netlink/af_netlink.c:1869 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x508/0x810 net/socket.c:2592 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1a1/0x260 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff88803d0b0700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88803d0b0780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88803d0b0800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88803d0b0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88803d0b0900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================