Extracting prog: 2m22.140310681s Minimizing prog: 26m51.516775372s Simplifying prog options: 0s Extracting C: 34.604330748s Simplifying C: 14m0.75361882s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer-syz_usb_control_io$cdc_ecm-syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io$hid-ioctl$EVIOCGKEY detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(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$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, &(0x7f00000010c0)={0x34, &(0x7f00000003c0)={0x40, 0x15, 0x7f, "06940f23e314010000000000000003000000000000006972e6290d23aea7087cac5f465d5f30573d0dcf1e7531cac1cf67fe09862bbfc1fe824fa39e42dde2f2ed4d746917ce44ff9d7f42b4a1f142913b36902771f24298c144dc5b3f36006e1a670e320f22df070c56980de66d9a801faa7249bff6cbcf125d28b4703c80"}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, &(0x7f00000001c0)={0x14, &(0x7f0000000000)={0x20, 0xb, 0x1f, {0x1f, 0x22, "89d03c628eb1d00d20877b0e7cc95fb01eb1fea57669d0f37bb1b27dca"}}, &(0x7f0000000180)={0x0, 0x3, 0x1a, {0x1a}}}, &(0x7f0000000380)={0x1c, &(0x7f0000000200)={0x20, 0x30, 0xb1, "cf288e3480c950f2a6d9dc877958e4998066dcfa39f3a633fd58e6a9eb8b6177ae97614b9a6a7226f1568496bffc09a7574972b0a4f21a709af983b60d607e65f1243970f9ac3864438e7436513fd74b1d87c654b67a91da756e7bb327f8dc1ab15e543fe0a71e4337aac231023835498bf5fdea57773e09d774e66a13cd2b616ae18105dcf1eb361b17e10f731dc8231c26a8ae0a57f1d685c16f0ffe1c08a4f603820a0cea5d1d16223935cb9aff54d7"}, &(0x7f00000002c0)={0x0, 0xa, 0x1, 0x4}, &(0x7f0000000300)={0x0, 0x8, 0x1, 0x8}}) r1 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x10, 0x1fd2, 0x6007, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x5}}}}]}}]}}, 0x0) syz_usb_control_io(r1, 0x0, 0x0) syz_usb_control_io$hid(r1, &(0x7f0000000340)={0x24, 0x0, 0x0, &(0x7f0000000080)=ANY=[@ANYRESOCT], 0x0}, 0x0) ioctl$EVIOCGKEY(0xffffffffffffffff, 0x80404518, &(0x7f00000000c0)=""/93) program did not crash single: failed to extract reproducer single: executing 1 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer-syz_usb_control_io$cdc_ecm-syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io$hid-ioctl$EVIOCGKEY detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(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$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, &(0x7f00000010c0)={0x34, &(0x7f00000003c0)={0x40, 0x15, 0x7f, "06940f23e314010000000000000003000000000000006972e6290d23aea7087cac5f465d5f30573d0dcf1e7531cac1cf67fe09862bbfc1fe824fa39e42dde2f2ed4d746917ce44ff9d7f42b4a1f142913b36902771f24298c144dc5b3f36006e1a670e320f22df070c56980de66d9a801faa7249bff6cbcf125d28b4703c80"}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, &(0x7f00000001c0)={0x14, &(0x7f0000000000)={0x20, 0xb, 0x1f, {0x1f, 0x22, "89d03c628eb1d00d20877b0e7cc95fb01eb1fea57669d0f37bb1b27dca"}}, &(0x7f0000000180)={0x0, 0x3, 0x1a, {0x1a}}}, &(0x7f0000000380)={0x1c, &(0x7f0000000200)={0x20, 0x30, 0xb1, "cf288e3480c950f2a6d9dc877958e4998066dcfa39f3a633fd58e6a9eb8b6177ae97614b9a6a7226f1568496bffc09a7574972b0a4f21a709af983b60d607e65f1243970f9ac3864438e7436513fd74b1d87c654b67a91da756e7bb327f8dc1ab15e543fe0a71e4337aac231023835498bf5fdea57773e09d774e66a13cd2b616ae18105dcf1eb361b17e10f731dc8231c26a8ae0a57f1d685c16f0ffe1c08a4f603820a0cea5d1d16223935cb9aff54d7"}, &(0x7f00000002c0)={0x0, 0xa, 0x1, 0x4}, &(0x7f0000000300)={0x0, 0x8, 0x1, 0x8}}) r1 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x10, 0x1fd2, 0x6007, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x5}}}}]}}]}}, 0x0) syz_usb_control_io(r1, 0x0, 0x0) syz_usb_control_io$hid(r1, &(0x7f0000000340)={0x24, 0x0, 0x0, &(0x7f0000000080)=ANY=[@ANYRESOCT], 0x0}, 0x0) ioctl$EVIOCGKEY(0xffffffffffffffff, 0x80404518, &(0x7f00000000c0)=""/93) program crashed: KASAN: use-after-free Read in process_one_work single: successfully extracted reproducer found reproducer with 12 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer-syz_usb_control_io$cdc_ecm-syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io$hid detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, &(0x7f00000010c0)={0x34, &(0x7f00000003c0)={0x40, 0x15, 0x7f, "06940f23e314010000000000000003000000000000006972e6290d23aea7087cac5f465d5f30573d0dcf1e7531cac1cf67fe09862bbfc1fe824fa39e42dde2f2ed4d746917ce44ff9d7f42b4a1f142913b36902771f24298c144dc5b3f36006e1a670e320f22df070c56980de66d9a801faa7249bff6cbcf125d28b4703c80"}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, &(0x7f00000001c0)={0x14, &(0x7f0000000000)={0x20, 0xb, 0x1f, {0x1f, 0x22, "89d03c628eb1d00d20877b0e7cc95fb01eb1fea57669d0f37bb1b27dca"}}, &(0x7f0000000180)={0x0, 0x3, 0x1a, {0x1a}}}, &(0x7f0000000380)={0x1c, &(0x7f0000000200)={0x20, 0x30, 0xb1, "cf288e3480c950f2a6d9dc877958e4998066dcfa39f3a633fd58e6a9eb8b6177ae97614b9a6a7226f1568496bffc09a7574972b0a4f21a709af983b60d607e65f1243970f9ac3864438e7436513fd74b1d87c654b67a91da756e7bb327f8dc1ab15e543fe0a71e4337aac231023835498bf5fdea57773e09d774e66a13cd2b616ae18105dcf1eb361b17e10f731dc8231c26a8ae0a57f1d685c16f0ffe1c08a4f603820a0cea5d1d16223935cb9aff54d7"}, &(0x7f00000002c0)={0x0, 0xa, 0x1, 0x4}, &(0x7f0000000300)={0x0, 0x8, 0x1, 0x8}}) r1 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x10, 0x1fd2, 0x6007, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x5}}}}]}}]}}, 0x0) syz_usb_control_io(r1, 0x0, 0x0) syz_usb_control_io$hid(r1, &(0x7f0000000340)={0x24, 0x0, 0x0, &(0x7f0000000080)=ANY=[@ANYRESOCT], 0x0}, 0x0) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer-syz_usb_control_io$cdc_ecm-syz_usb_connect$hid-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(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$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, &(0x7f00000010c0)={0x34, &(0x7f00000003c0)={0x40, 0x15, 0x7f, "06940f23e314010000000000000003000000000000006972e6290d23aea7087cac5f465d5f30573d0dcf1e7531cac1cf67fe09862bbfc1fe824fa39e42dde2f2ed4d746917ce44ff9d7f42b4a1f142913b36902771f24298c144dc5b3f36006e1a670e320f22df070c56980de66d9a801faa7249bff6cbcf125d28b4703c80"}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, &(0x7f00000001c0)={0x14, &(0x7f0000000000)={0x20, 0xb, 0x1f, {0x1f, 0x22, "89d03c628eb1d00d20877b0e7cc95fb01eb1fea57669d0f37bb1b27dca"}}, &(0x7f0000000180)={0x0, 0x3, 0x1a, {0x1a}}}, &(0x7f0000000380)={0x1c, &(0x7f0000000200)={0x20, 0x30, 0xb1, "cf288e3480c950f2a6d9dc877958e4998066dcfa39f3a633fd58e6a9eb8b6177ae97614b9a6a7226f1568496bffc09a7574972b0a4f21a709af983b60d607e65f1243970f9ac3864438e7436513fd74b1d87c654b67a91da756e7bb327f8dc1ab15e543fe0a71e4337aac231023835498bf5fdea57773e09d774e66a13cd2b616ae18105dcf1eb361b17e10f731dc8231c26a8ae0a57f1d685c16f0ffe1c08a4f603820a0cea5d1d16223935cb9aff54d7"}, &(0x7f00000002c0)={0x0, 0xa, 0x1, 0x4}, &(0x7f0000000300)={0x0, 0x8, 0x1, 0x8}}) r1 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x10, 0x1fd2, 0x6007, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x5}}}}]}}]}}, 0x0) syz_usb_control_io(r1, 0x0, 0x0) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer-syz_usb_control_io$cdc_ecm-syz_usb_connect$hid detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(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$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, &(0x7f00000010c0)={0x34, &(0x7f00000003c0)={0x40, 0x15, 0x7f, "06940f23e314010000000000000003000000000000006972e6290d23aea7087cac5f465d5f30573d0dcf1e7531cac1cf67fe09862bbfc1fe824fa39e42dde2f2ed4d746917ce44ff9d7f42b4a1f142913b36902771f24298c144dc5b3f36006e1a670e320f22df070c56980de66d9a801faa7249bff6cbcf125d28b4703c80"}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, &(0x7f00000001c0)={0x14, &(0x7f0000000000)={0x20, 0xb, 0x1f, {0x1f, 0x22, "89d03c628eb1d00d20877b0e7cc95fb01eb1fea57669d0f37bb1b27dca"}}, &(0x7f0000000180)={0x0, 0x3, 0x1a, {0x1a}}}, &(0x7f0000000380)={0x1c, &(0x7f0000000200)={0x20, 0x30, 0xb1, "cf288e3480c950f2a6d9dc877958e4998066dcfa39f3a633fd58e6a9eb8b6177ae97614b9a6a7226f1568496bffc09a7574972b0a4f21a709af983b60d607e65f1243970f9ac3864438e7436513fd74b1d87c654b67a91da756e7bb327f8dc1ab15e543fe0a71e4337aac231023835498bf5fdea57773e09d774e66a13cd2b616ae18105dcf1eb361b17e10f731dc8231c26a8ae0a57f1d685c16f0ffe1c08a4f603820a0cea5d1d16223935cb9aff54d7"}, &(0x7f00000002c0)={0x0, 0xa, 0x1, 0x4}, &(0x7f0000000300)={0x0, 0x8, 0x1, 0x8}}) syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x10, 0x1fd2, 0x6007, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x5}}}}]}}]}}, 0x0) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer-syz_usb_control_io$cdc_ecm detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, &(0x7f00000010c0)={0x34, &(0x7f00000003c0)={0x40, 0x15, 0x7f, "06940f23e314010000000000000003000000000000006972e6290d23aea7087cac5f465d5f30573d0dcf1e7531cac1cf67fe09862bbfc1fe824fa39e42dde2f2ed4d746917ce44ff9d7f42b4a1f142913b36902771f24298c144dc5b3f36006e1a670e320f22df070c56980de66d9a801faa7249bff6cbcf125d28b4703c80"}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, &(0x7f00000001c0)={0x14, &(0x7f0000000000)={0x20, 0xb, 0x1f, {0x1f, 0x22, "89d03c628eb1d00d20877b0e7cc95fb01eb1fea57669d0f37bb1b27dca"}}, &(0x7f0000000180)={0x0, 0x3, 0x1a, {0x1a}}}, &(0x7f0000000380)={0x1c, &(0x7f0000000200)={0x20, 0x30, 0xb1, "cf288e3480c950f2a6d9dc877958e4998066dcfa39f3a633fd58e6a9eb8b6177ae97614b9a6a7226f1568496bffc09a7574972b0a4f21a709af983b60d607e65f1243970f9ac3864438e7436513fd74b1d87c654b67a91da756e7bb327f8dc1ab15e543fe0a71e4337aac231023835498bf5fdea57773e09d774e66a13cd2b616ae18105dcf1eb361b17e10f731dc8231c26a8ae0a57f1d685c16f0ffe1c08a4f603820a0cea5d1d16223935cb9aff54d7"}, &(0x7f00000002c0)={0x0, 0xa, 0x1, 0x4}, &(0x7f0000000300)={0x0, 0x8, 0x1, 0x8}}) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(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$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, &(0x7f00000010c0)={0x34, &(0x7f00000003c0)={0x40, 0x15, 0x7f, "06940f23e314010000000000000003000000000000006972e6290d23aea7087cac5f465d5f30573d0dcf1e7531cac1cf67fe09862bbfc1fe824fa39e42dde2f2ed4d746917ce44ff9d7f42b4a1f142913b36902771f24298c144dc5b3f36006e1a670e320f22df070c56980de66d9a801faa7249bff6cbcf125d28b4703c80"}, 0x0, 0x0, 0x0, 0x0, 0x0}) program crashed: KASAN: use-after-free Read in process_one_work 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io-syz_usb_control_io$cdc_ecm detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) program crashed: KASAN: use-after-free Read in process_one_work 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(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) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$hid detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$printer detailed listing: executing program 0: r0 = syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x0, 0x18, 0x2d, 0x9c, 0x10, 0x930, 0xa13, 0x7644, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x4, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xf, 0x2, 0x2, 0xff, 0xff, 0x0, 0x0, [], [{{0x9, 0x5, 0x4, 0x2, 0x10, 0x0, 0xfa}}, {{0x9, 0x5, 0x82, 0x2, 0x40}}]}}]}}]}}, 0x0) program crashed: KASAN: use-after-free Read in process_one_work 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x0, 0x0, 0x0) 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: use-after-free Read in worker_thread 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect 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:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: use-after-free Read in worker_thread 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: use-after-free Read in worker_thread 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:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: use-after-free Read in worker_thread 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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: use-after-free Read in worker_thread reproducing took 43m49.015103441s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in worker_thread+0x9ff/0x11f0 kernel/workqueue.c:2444 Read of size 8 at addr ffff8881143fcce0 by task kworker/0:4/302 CPU: 0 PID: 302 Comm: kworker/0:4 Not tainted 6.1.138-syzkaller-00009-g6246d345f550 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: 0x0 (events) Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106 print_address_description+0x71/0x210 mm/kasan/report.c:316 print_report+0x4a/0x60 mm/kasan/report.c:427 kasan_report+0x122/0x150 mm/kasan/report.c:531 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:351 worker_thread+0x9ff/0x11f0 kernel/workqueue.c:2444 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Allocated by task 297: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x25/0x30 mm/kasan/generic.c:505 ____kasan_kmalloc mm/kasan/common.c:379 [inline] __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:388 kasan_kmalloc include/linux/kasan.h:212 [inline] __do_kmalloc_node mm/slab_common.c:938 [inline] __kmalloc_node+0xb2/0x1e0 mm/slab_common.c:945 kmalloc_node include/linux/slab.h:589 [inline] kvmalloc_node+0x294/0x480 mm/util.c:592 kvmalloc include/linux/slab.h:716 [inline] kvzalloc include/linux/slab.h:724 [inline] alloc_netdev_mqs+0x8d/0xf90 net/core/dev.c:10680 alloc_etherdev_mqs+0x37/0x40 net/ethernet/eth.c:384 usbnet_probe+0x20c/0x2780 drivers/net/usb/usbnet.c:1720 usb_probe_interface+0x610/0xaf0 drivers/usb/core/driver.c:397 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_set_configuration+0x19c2/0x1f10 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x159/0x270 drivers/usb/core/driver.c:294 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_new_device+0xa70/0x1520 drivers/usb/core/hub.c:2656 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2a5d/0x4680 drivers/usb/core/hub.c:5948 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299 process_scheduled_works kernel/workqueue.c:2362 [inline] worker_thread+0xd2e/0x11f0 kernel/workqueue.c:2448 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Freed by task 297: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x31/0x50 mm/kasan/generic.c:516 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:241 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249 kasan_slab_free include/linux/kasan.h:178 [inline] slab_free_hook mm/slub.c:1745 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1771 slab_free mm/slub.c:3686 [inline] __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3702 kfree+0x6f/0xf0 mm/slab_common.c:990 kvfree+0x35/0x40 mm/util.c:639 netdev_freemem+0x3f/0x60 net/core/dev.c:10634 netdev_release+0x7f/0xb0 net/core/net-sysfs.c:1904 device_release+0xa4/0x1d0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x19d/0x280 lib/kobject.c:729 put_device+0x1f/0x30 drivers/base/core.c:3806 free_netdev+0x392/0x490 net/core/dev.c:10827 usbnet_disconnect+0x25a/0x3b0 drivers/net/usb/usbnet.c:1659 ax88179_disconnect+0x82/0xb0 drivers/net/usb/ax88179_178a.c:510 usb_unbind_interface+0x223/0x8d0 drivers/usb/core/driver.c:459 device_remove drivers/base/dd.c:550 [inline] __device_release_driver drivers/base/dd.c:1283 [inline] device_release_driver_internal+0x508/0x820 drivers/base/dd.c:1309 device_release_driver+0x19/0x20 drivers/base/dd.c:1332 bus_remove_device+0x2ee/0x350 drivers/base/bus.c:531 device_del+0x6a4/0xeb0 drivers/base/core.c:3886 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1414 usb_disconnect+0x31e/0x860 drivers/usb/core/hub.c:2311 hub_port_connect drivers/usb/core/hub.c:5405 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x1bd5/0x4680 drivers/usb/core/hub.c:5948 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299 process_scheduled_works kernel/workqueue.c:2362 [inline] worker_thread+0xd2e/0x11f0 kernel/workqueue.c:2448 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Last potentially related work creation: kasan_save_stack+0x3a/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496 insert_work+0x51/0x300 kernel/workqueue.c:1368 __queue_work+0x9b1/0xd30 kernel/workqueue.c:1527 queue_work_on+0xd2/0x140 kernel/workqueue.c:1555 queue_work include/linux/workqueue.h:510 [inline] schedule_work include/linux/workqueue.h:571 [inline] usbnet_defer_kevent drivers/net/usb/usbnet.c:479 [inline] usbnet_link_change+0x176/0x1a0 drivers/net/usb/usbnet.c:-1 ax88179_reset+0x31c2/0x4c70 drivers/net/usb/ax88179_178a.c:1675 ax88179_bind+0x2c7/0x3a0 drivers/net/usb/ax88179_178a.c:1321 usbnet_probe+0xafa/0x2780 drivers/net/usb/usbnet.c:1771 usb_probe_interface+0x610/0xaf0 drivers/usb/core/driver.c:397 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_set_configuration+0x19c2/0x1f10 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x159/0x270 drivers/usb/core/driver.c:294 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_new_device+0xa70/0x1520 drivers/usb/core/hub.c:2656 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2a5d/0x4680 drivers/usb/core/hub.c:5948 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299 process_scheduled_works kernel/workqueue.c:2362 [inline] worker_thread+0xd2e/0x11f0 kernel/workqueue.c:2448 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff8881143fc000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 3296 bytes inside of 4096-byte region [ffff8881143fc000, ffff8881143fd000) The buggy address belongs to the physical page: page:ffffea000450fe00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1143f8 head:ffffea000450fe00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=1) raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100043380 raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000 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 297, tgid 297 (kworker/0:2), ts 46630417194, free_ts 45834880520 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2637 prep_new_page+0x1c/0x110 mm/page_alloc.c:2644 get_page_from_freelist+0x2c7b/0x2cf0 mm/page_alloc.c:4539 __alloc_pages+0x19e/0x3a0 mm/page_alloc.c:5842 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1 allocate_slab mm/slub.c:1962 [inline] new_slab+0x98/0x3d0 mm/slub.c:2015 ___slab_alloc+0x6f6/0xb50 mm/slub.c:3203 __slab_alloc+0x5e/0xa0 mm/slub.c:3302 slab_alloc_node mm/slub.c:3387 [inline] __kmem_cache_alloc_node+0x203/0x2c0 mm/slub.c:3462 kmalloc_trace+0x29/0xb0 mm/slab_common.c:1028 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:699 [inline] kobject_uevent_env+0x287/0x730 lib/kobject_uevent.c:539 kobject_uevent+0x1d/0x30 lib/kobject_uevent.c:657 device_add+0xa5c/0xef0 drivers/base/core.c:3679 usb_set_configuration+0x19c2/0x1f10 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x159/0x270 drivers/usb/core/driver.c:294 page last free stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1545 [inline] free_pcp_prepare mm/page_alloc.c:1619 [inline] free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3581 free_unref_page+0x8f/0x530 mm/page_alloc.c:3677 free_the_page mm/page_alloc.c:830 [inline] __free_pages+0x67/0x100 mm/page_alloc.c:5931 __free_slab+0xca/0x1a0 mm/slub.c:2039 free_slab mm/slub.c:2054 [inline] discard_slab mm/slub.c:2060 [inline] __unfreeze_partials+0x160/0x190 mm/slub.c:2609 put_cpu_partial+0xa9/0x100 mm/slub.c:2685 __slab_free+0x1c4/0x280 mm/slub.c:3563 do_slab_free mm/slub.c:3640 [inline] ___cache_free+0xbf/0xd0 mm/slub.c:3696 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0xc6/0x140 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x14a/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x24/0x80 mm/kasan/common.c:310 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768 slab_alloc_node mm/slub.c:3421 [inline] slab_alloc mm/slub.c:3431 [inline] __kmem_cache_alloc_lru mm/slub.c:3438 [inline] kmem_cache_alloc+0x16e/0x330 mm/slub.c:3447 vm_area_alloc+0x24/0x1a0 kernel/fork.c:495 __install_special_mapping+0x35/0x2e0 mm/mmap.c:3650 _install_special_mapping+0x3c/0x50 mm/mmap.c:3703 Memory state around the buggy address: ffff8881143fcb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881143fcc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8881143fcc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8881143fcd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881143fcd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in worker_thread+0x9ff/0x11f0 kernel/workqueue.c:2444 Read of size 8 at addr ffff8881143fcce0 by task kworker/0:4/302 CPU: 0 PID: 302 Comm: kworker/0:4 Not tainted 6.1.138-syzkaller-00009-g6246d345f550 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: 0x0 (events) Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106 print_address_description+0x71/0x210 mm/kasan/report.c:316 print_report+0x4a/0x60 mm/kasan/report.c:427 kasan_report+0x122/0x150 mm/kasan/report.c:531 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:351 worker_thread+0x9ff/0x11f0 kernel/workqueue.c:2444 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Allocated by task 297: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x25/0x30 mm/kasan/generic.c:505 ____kasan_kmalloc mm/kasan/common.c:379 [inline] __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:388 kasan_kmalloc include/linux/kasan.h:212 [inline] __do_kmalloc_node mm/slab_common.c:938 [inline] __kmalloc_node+0xb2/0x1e0 mm/slab_common.c:945 kmalloc_node include/linux/slab.h:589 [inline] kvmalloc_node+0x294/0x480 mm/util.c:592 kvmalloc include/linux/slab.h:716 [inline] kvzalloc include/linux/slab.h:724 [inline] alloc_netdev_mqs+0x8d/0xf90 net/core/dev.c:10680 alloc_etherdev_mqs+0x37/0x40 net/ethernet/eth.c:384 usbnet_probe+0x20c/0x2780 drivers/net/usb/usbnet.c:1720 usb_probe_interface+0x610/0xaf0 drivers/usb/core/driver.c:397 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_set_configuration+0x19c2/0x1f10 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x159/0x270 drivers/usb/core/driver.c:294 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_new_device+0xa70/0x1520 drivers/usb/core/hub.c:2656 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2a5d/0x4680 drivers/usb/core/hub.c:5948 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299 process_scheduled_works kernel/workqueue.c:2362 [inline] worker_thread+0xd2e/0x11f0 kernel/workqueue.c:2448 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Freed by task 297: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x31/0x50 mm/kasan/generic.c:516 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:241 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249 kasan_slab_free include/linux/kasan.h:178 [inline] slab_free_hook mm/slub.c:1745 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1771 slab_free mm/slub.c:3686 [inline] __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3702 kfree+0x6f/0xf0 mm/slab_common.c:990 kvfree+0x35/0x40 mm/util.c:639 netdev_freemem+0x3f/0x60 net/core/dev.c:10634 netdev_release+0x7f/0xb0 net/core/net-sysfs.c:1904 device_release+0xa4/0x1d0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x19d/0x280 lib/kobject.c:729 put_device+0x1f/0x30 drivers/base/core.c:3806 free_netdev+0x392/0x490 net/core/dev.c:10827 usbnet_disconnect+0x25a/0x3b0 drivers/net/usb/usbnet.c:1659 ax88179_disconnect+0x82/0xb0 drivers/net/usb/ax88179_178a.c:510 usb_unbind_interface+0x223/0x8d0 drivers/usb/core/driver.c:459 device_remove drivers/base/dd.c:550 [inline] __device_release_driver drivers/base/dd.c:1283 [inline] device_release_driver_internal+0x508/0x820 drivers/base/dd.c:1309 device_release_driver+0x19/0x20 drivers/base/dd.c:1332 bus_remove_device+0x2ee/0x350 drivers/base/bus.c:531 device_del+0x6a4/0xeb0 drivers/base/core.c:3886 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1414 usb_disconnect+0x31e/0x860 drivers/usb/core/hub.c:2311 hub_port_connect drivers/usb/core/hub.c:5405 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x1bd5/0x4680 drivers/usb/core/hub.c:5948 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299 process_scheduled_works kernel/workqueue.c:2362 [inline] worker_thread+0xd2e/0x11f0 kernel/workqueue.c:2448 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Last potentially related work creation: kasan_save_stack+0x3a/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496 insert_work+0x51/0x300 kernel/workqueue.c:1368 __queue_work+0x9b1/0xd30 kernel/workqueue.c:1527 queue_work_on+0xd2/0x140 kernel/workqueue.c:1555 queue_work include/linux/workqueue.h:510 [inline] schedule_work include/linux/workqueue.h:571 [inline] usbnet_defer_kevent drivers/net/usb/usbnet.c:479 [inline] usbnet_link_change+0x176/0x1a0 drivers/net/usb/usbnet.c:-1 ax88179_reset+0x31c2/0x4c70 drivers/net/usb/ax88179_178a.c:1675 ax88179_bind+0x2c7/0x3a0 drivers/net/usb/ax88179_178a.c:1321 usbnet_probe+0xafa/0x2780 drivers/net/usb/usbnet.c:1771 usb_probe_interface+0x610/0xaf0 drivers/usb/core/driver.c:397 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_set_configuration+0x19c2/0x1f10 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x159/0x270 drivers/usb/core/driver.c:294 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2cb/0x960 drivers/base/dd.c:639 __driver_probe_device+0x198/0x280 drivers/base/dd.c:808 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:838 __device_attach_driver+0x2e9/0x4a0 drivers/base/dd.c:966 bus_for_each_drv+0x183/0x210 drivers/base/bus.c:429 __device_attach+0x2a2/0x400 drivers/base/dd.c:1038 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1087 bus_probe_device+0xc0/0x1f0 drivers/base/bus.c:489 device_add+0xb4d/0xef0 drivers/base/core.c:3698 usb_new_device+0xa70/0x1520 drivers/usb/core/hub.c:2656 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2a5d/0x4680 drivers/usb/core/hub.c:5948 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299 process_scheduled_works kernel/workqueue.c:2362 [inline] worker_thread+0xd2e/0x11f0 kernel/workqueue.c:2448 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff8881143fc000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 3296 bytes inside of 4096-byte region [ffff8881143fc000, ffff8881143fd000) The buggy address belongs to the physical page: page:ffffea000450fe00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1143f8 head:ffffea000450fe00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=1) raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100043380 raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000 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 297, tgid 297 (kworker/0:2), ts 46630417194, free_ts 45834880520 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2637 prep_new_page+0x1c/0x110 mm/page_alloc.c:2644 get_page_from_freelist+0x2c7b/0x2cf0 mm/page_alloc.c:4539 __alloc_pages+0x19e/0x3a0 mm/page_alloc.c:5842 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1 allocate_slab mm/slub.c:1962 [inline] new_slab+0x98/0x3d0 mm/slub.c:2015 ___slab_alloc+0x6f6/0xb50 mm/slub.c:3203 __slab_alloc+0x5e/0xa0 mm/slub.c:3302 slab_alloc_node mm/slub.c:3387 [inline] __kmem_cache_alloc_node+0x203/0x2c0 mm/slub.c:3462 kmalloc_trace+0x29/0xb0 mm/slab_common.c:1028 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:699 [inline] kobject_uevent_env+0x287/0x730 lib/kobject_uevent.c:539 kobject_uevent+0x1d/0x30 lib/kobject_uevent.c:657 device_add+0xa5c/0xef0 drivers/base/core.c:3679 usb_set_configuration+0x19c2/0x1f10 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x159/0x270 drivers/usb/core/driver.c:294 page last free stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1545 [inline] free_pcp_prepare mm/page_alloc.c:1619 [inline] free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3581 free_unref_page+0x8f/0x530 mm/page_alloc.c:3677 free_the_page mm/page_alloc.c:830 [inline] __free_pages+0x67/0x100 mm/page_alloc.c:5931 __free_slab+0xca/0x1a0 mm/slub.c:2039 free_slab mm/slub.c:2054 [inline] discard_slab mm/slub.c:2060 [inline] __unfreeze_partials+0x160/0x190 mm/slub.c:2609 put_cpu_partial+0xa9/0x100 mm/slub.c:2685 __slab_free+0x1c4/0x280 mm/slub.c:3563 do_slab_free mm/slub.c:3640 [inline] ___cache_free+0xbf/0xd0 mm/slub.c:3696 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0xc6/0x140 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x14a/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x24/0x80 mm/kasan/common.c:310 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768 slab_alloc_node mm/slub.c:3421 [inline] slab_alloc mm/slub.c:3431 [inline] __kmem_cache_alloc_lru mm/slub.c:3438 [inline] kmem_cache_alloc+0x16e/0x330 mm/slub.c:3447 vm_area_alloc+0x24/0x1a0 kernel/fork.c:495 __install_special_mapping+0x35/0x2e0 mm/mmap.c:3650 _install_special_mapping+0x3c/0x50 mm/mmap.c:3703 Memory state around the buggy address: ffff8881143fcb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881143fcc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8881143fcc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8881143fcd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881143fcd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================