Extracting prog: 1m53.484306618s
Minimizing prog: 18m19.69964102s
Simplifying prog options: 0s
Extracting C: 28.207477743s
Simplifying C: 8m56.24378021s


extracting reproducer from 30 programs
first checking the prog from the crash report
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: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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
recvmsg$qrtr(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
bind$alg(0xffffffffffffffff, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
r0 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0)
recvmsg$qrtr(r0, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, 0x0, 0x0)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, 0x0, 0x0, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x12023}, 0x38, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{0x0}], 0x1, 0x0, 0x0, 0x12023}, 0x38, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, 0x0, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=46.932189576s, {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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
simplifying C reproducer
testing compiled C program (duration=46.932189576s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program did not crash
testing compiled C program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
testing compiled C program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
testing compiled C program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 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}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
testing compiled C program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
testing compiled C program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
testing compiled C program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
testing program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
validation run: crashed=true
testing program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
validation run: crashed=true
testing program (duration=46.932189576s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$alg-bind$alg-setsockopt$ALG_SET_KEY-accept4-recvmsg$qrtr-sendmsg$nl_route_sched_retired
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-serpent-avx\x00'}, 0x58)
setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, 0x0, 0x0)
r1 = accept4(r0, 0x0, 0x0, 0x0)
recvmsg$qrtr(r1, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000980)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x12023}, 0x1c, 0x40002022)
sendmsg$nl_route_sched_retired(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000012100), 0xe078}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in af_alg_pull_tsgl
validation run: crashed=true
reproducing took 34m0.647399029s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in sg_assign_page include/linux/scatterlist.h:131 [inline]
BUG: KASAN: slab-out-of-bounds in sg_set_page include/linux/scatterlist.h:162 [inline]
BUG: KASAN: slab-out-of-bounds in af_alg_pull_tsgl+0x8fb/0xa80 crypto/af_alg.c:711
Read of size 8 at addr ffff8880763420e0 by task syz.0.17/5993

CPU: 1 UID: 0 PID: 5993 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x156/0x4c9 mm/kasan/report.c:482
 kasan_report+0xdf/0x1e0 mm/kasan/report.c:595
 sg_assign_page include/linux/scatterlist.h:131 [inline]
 sg_set_page include/linux/scatterlist.h:162 [inline]
 af_alg_pull_tsgl+0x8fb/0xa80 crypto/af_alg.c:711
 _skcipher_recvmsg crypto/algif_skcipher.c:152 [inline]
 skcipher_recvmsg+0x512/0x1020 crypto/algif_skcipher.c:221
 sock_recvmsg_nosec net/socket.c:1078 [inline]
 sock_recvmsg+0x1a4/0x1f0 net/socket.c:1100
 ____sys_recvmsg+0x218/0x640 net/socket.c:2812
 ___sys_recvmsg+0x16a/0x1a0 net/socket.c:2854
 __sys_recvmsg+0x16d/0x220 net/socket.c:2887
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e3ef9c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2e3fe39028 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f2e3f215fa0 RCX: 00007f2e3ef9c819
RDX: 000000000000001c RSI: 0000200000000480 RDI: 0000000000000004
RBP: 00007f2e3f032c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000040002022 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2e3f216038 R14: 00007f2e3f215fa0 R15: 00007ffd38493c78
 </TASK>

Allocated by task 5993:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5260 [inline]
 __kmalloc_noprof+0x301/0x850 mm/slub.c:5272
 kmalloc_noprof include/linux/slab.h:954 [inline]
 sock_kmalloc+0x111/0x170 net/core/sock.c:2880
 _skcipher_recvmsg crypto/algif_skcipher.c:144 [inline]
 skcipher_recvmsg+0x48b/0x1020 crypto/algif_skcipher.c:221
 sock_recvmsg_nosec net/socket.c:1078 [inline]
 sock_recvmsg+0x1a4/0x1f0 net/socket.c:1100
 ____sys_recvmsg+0x218/0x640 net/socket.c:2812
 ___sys_recvmsg+0x16a/0x1a0 net/socket.c:2854
 __sys_recvmsg+0x16d/0x220 net/socket.c:2887
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880763420c0
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes to the right of
 allocated 32-byte region [ffff8880763420c0, ffff8880763420e0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76342
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88813fe40780 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800400040 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5645, tgid 5645 (dhcpcd), ts 41947478103, free_ts 41863272395
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x153/0x170 mm/page_alloc.c:1889
 prep_new_page mm/page_alloc.c:1897 [inline]
 get_page_from_freelist+0x111d/0x3140 mm/page_alloc.c:3962
 __alloc_frozen_pages_noprof+0x27c/0x2ba0 mm/page_alloc.c:5250
 alloc_slab_page mm/slub.c:3292 [inline]
 allocate_slab mm/slub.c:3481 [inline]
 new_slab+0xa6/0x6b0 mm/slub.c:3539
 refill_objects+0x26b/0x400 mm/slub.c:7175
 refill_sheaf mm/slub.c:2812 [inline]
 __pcs_replace_empty_main+0x1ab/0x660 mm/slub.c:4615
 alloc_from_pcs mm/slub.c:4717 [inline]
 slab_alloc_node mm/slub.c:4851 [inline]
 __kmalloc_cache_noprof+0x493/0x6f0 mm/slub.c:5375
 kmalloc_noprof include/linux/slab.h:950 [inline]
 slab_free_hook mm/slub.c:2637 [inline]
 slab_free mm/slub.c:6165 [inline]
 kmem_cache_free+0x41f/0x6a0 mm/slub.c:6295
 anon_vma_free mm/rmap.c:137 [inline]
 __put_anon_vma+0x114/0x3a0 mm/rmap.c:2909
 put_anon_vma mm/internal.h:215 [inline]
 unlink_anon_vmas+0x5f3/0x8e0 mm/rmap.c:536
 free_pgtables+0x2e7/0xd80 mm/memory.c:427
 exit_mmap+0x44c/0xa30 mm/mmap.c:1314
 __mmput+0x12a/0x410 kernel/fork.c:1175
 mmput+0x67/0x80 kernel/fork.c:1198
 exit_mm kernel/exit.c:581 [inline]
 do_exit+0x819/0x2b60 kernel/exit.c:964
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1118
page last free pid 23 tgid 23 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0x7e1/0x10d0 mm/page_alloc.c:2978
 __pagetable_free include/linux/mm.h:3414 [inline]
 pagetable_free include/linux/mm.h:3438 [inline]
 pagetable_dtor_free include/linux/mm.h:3537 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:221 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:228 [inline]
 tlb_remove_table_rcu+0x2cf/0x380 mm/mmu_gather.c:291
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x5a2/0x10d0 kernel/rcu/tree.c:2869
 handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622
 run_ksoftirqd kernel/softirq.c:1063 [inline]
 run_ksoftirqd+0x38/0x60 kernel/softirq.c:1055
 smpboot_thread_fn+0x3d3/0xaa0 kernel/smpboot.c:160
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff888076341f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888076342000: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
>ffff888076342080: fa fb fb fb fc fc fc fc 00 00 00 00 fc fc fc fc
                                                       ^
 ffff888076342100: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888076342180: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in sg_assign_page include/linux/scatterlist.h:131 [inline]
BUG: KASAN: slab-out-of-bounds in sg_set_page include/linux/scatterlist.h:162 [inline]
BUG: KASAN: slab-out-of-bounds in af_alg_pull_tsgl+0x8fb/0xa80 crypto/af_alg.c:711
Read of size 8 at addr ffff8880763420e0 by task syz.0.17/5993

CPU: 1 UID: 0 PID: 5993 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x156/0x4c9 mm/kasan/report.c:482
 kasan_report+0xdf/0x1e0 mm/kasan/report.c:595
 sg_assign_page include/linux/scatterlist.h:131 [inline]
 sg_set_page include/linux/scatterlist.h:162 [inline]
 af_alg_pull_tsgl+0x8fb/0xa80 crypto/af_alg.c:711
 _skcipher_recvmsg crypto/algif_skcipher.c:152 [inline]
 skcipher_recvmsg+0x512/0x1020 crypto/algif_skcipher.c:221
 sock_recvmsg_nosec net/socket.c:1078 [inline]
 sock_recvmsg+0x1a4/0x1f0 net/socket.c:1100
 ____sys_recvmsg+0x218/0x640 net/socket.c:2812
 ___sys_recvmsg+0x16a/0x1a0 net/socket.c:2854
 __sys_recvmsg+0x16d/0x220 net/socket.c:2887
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e3ef9c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2e3fe39028 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f2e3f215fa0 RCX: 00007f2e3ef9c819
RDX: 000000000000001c RSI: 0000200000000480 RDI: 0000000000000004
RBP: 00007f2e3f032c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000040002022 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2e3f216038 R14: 00007f2e3f215fa0 R15: 00007ffd38493c78
 </TASK>

Allocated by task 5993:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5260 [inline]
 __kmalloc_noprof+0x301/0x850 mm/slub.c:5272
 kmalloc_noprof include/linux/slab.h:954 [inline]
 sock_kmalloc+0x111/0x170 net/core/sock.c:2880
 _skcipher_recvmsg crypto/algif_skcipher.c:144 [inline]
 skcipher_recvmsg+0x48b/0x1020 crypto/algif_skcipher.c:221
 sock_recvmsg_nosec net/socket.c:1078 [inline]
 sock_recvmsg+0x1a4/0x1f0 net/socket.c:1100
 ____sys_recvmsg+0x218/0x640 net/socket.c:2812
 ___sys_recvmsg+0x16a/0x1a0 net/socket.c:2854
 __sys_recvmsg+0x16d/0x220 net/socket.c:2887
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880763420c0
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes to the right of
 allocated 32-byte region [ffff8880763420c0, ffff8880763420e0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76342
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88813fe40780 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800400040 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5645, tgid 5645 (dhcpcd), ts 41947478103, free_ts 41863272395
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x153/0x170 mm/page_alloc.c:1889
 prep_new_page mm/page_alloc.c:1897 [inline]
 get_page_from_freelist+0x111d/0x3140 mm/page_alloc.c:3962
 __alloc_frozen_pages_noprof+0x27c/0x2ba0 mm/page_alloc.c:5250
 alloc_slab_page mm/slub.c:3292 [inline]
 allocate_slab mm/slub.c:3481 [inline]
 new_slab+0xa6/0x6b0 mm/slub.c:3539
 refill_objects+0x26b/0x400 mm/slub.c:7175
 refill_sheaf mm/slub.c:2812 [inline]
 __pcs_replace_empty_main+0x1ab/0x660 mm/slub.c:4615
 alloc_from_pcs mm/slub.c:4717 [inline]
 slab_alloc_node mm/slub.c:4851 [inline]
 __kmalloc_cache_noprof+0x493/0x6f0 mm/slub.c:5375
 kmalloc_noprof include/linux/slab.h:950 [inline]
 slab_free_hook mm/slub.c:2637 [inline]
 slab_free mm/slub.c:6165 [inline]
 kmem_cache_free+0x41f/0x6a0 mm/slub.c:6295
 anon_vma_free mm/rmap.c:137 [inline]
 __put_anon_vma+0x114/0x3a0 mm/rmap.c:2909
 put_anon_vma mm/internal.h:215 [inline]
 unlink_anon_vmas+0x5f3/0x8e0 mm/rmap.c:536
 free_pgtables+0x2e7/0xd80 mm/memory.c:427
 exit_mmap+0x44c/0xa30 mm/mmap.c:1314
 __mmput+0x12a/0x410 kernel/fork.c:1175
 mmput+0x67/0x80 kernel/fork.c:1198
 exit_mm kernel/exit.c:581 [inline]
 do_exit+0x819/0x2b60 kernel/exit.c:964
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1118
page last free pid 23 tgid 23 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0x7e1/0x10d0 mm/page_alloc.c:2978
 __pagetable_free include/linux/mm.h:3414 [inline]
 pagetable_free include/linux/mm.h:3438 [inline]
 pagetable_dtor_free include/linux/mm.h:3537 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:221 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:228 [inline]
 tlb_remove_table_rcu+0x2cf/0x380 mm/mmu_gather.c:291
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x5a2/0x10d0 kernel/rcu/tree.c:2869
 handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622
 run_ksoftirqd kernel/softirq.c:1063 [inline]
 run_ksoftirqd+0x38/0x60 kernel/softirq.c:1055
 smpboot_thread_fn+0x3d3/0xaa0 kernel/smpboot.c:160
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff888076341f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888076342000: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
>ffff888076342080: fa fb fb fb fc fc fc fc 00 00 00 00 fc fc fc fc
                                                       ^
 ffff888076342100: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888076342180: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
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