Extracting prog: 1m5.842364941s Minimizing prog: 35m12.999093005s Simplifying prog options: 6m16.018811758s Extracting C: 1m18.138177115s Simplifying C: 0s 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$NFT_BATCH-openat$vmci-ioctl$IOCTL_VMCI_INIT_CONTEXT-ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE-sendmsg$nl_route-socket$nl_route-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r3, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000020000000900010073797a300000000040000000030a09020000000000000000020000000900010073797a30000000000900030073797a3200000000140004800800014000000000080002400000000014000000110001"], 0x88}}, 0x0) r4 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) ioctl$IOCTL_VMCI_INIT_CONTEXT(r4, 0x7a0, &(0x7f0000000140)={@my=0x0}) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(r4, 0x7a6, 0x0) sendmsg$nl_route(r0, 0x0, 0x0) socket$nl_route(0x10, 0x3, 0x0) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev single: successfully extracted reproducer found reproducer with 17 syscalls minimizing guilty program 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$NFT_BATCH-openat$vmci-ioctl$IOCTL_VMCI_INIT_CONTEXT-ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE-sendmsg$nl_route-socket$nl_route detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r1 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r2, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000020000000900010073797a300000000040000000030a09020000000000000000020000000900010073797a30000000000900030073797a3200000000140004800800014000000000080002400000000014000000110001"], 0x88}}, 0x0) r3 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) ioctl$IOCTL_VMCI_INIT_CONTEXT(r3, 0x7a0, &(0x7f0000000140)={@my=0x0}) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(r3, 0x7a6, 0x0) sendmsg$nl_route(r0, 0x0, 0x0) socket$nl_route(0x10, 0x3, 0x0) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$NFT_BATCH-openat$vmci-ioctl$IOCTL_VMCI_INIT_CONTEXT-ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE-sendmsg$nl_route-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r3, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000020000000900010073797a300000000040000000030a09020000000000000000020000000900010073797a30000000000900030073797a3200000000140004800800014000000000080002400000000014000000110001"], 0x88}}, 0x0) r4 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) ioctl$IOCTL_VMCI_INIT_CONTEXT(r4, 0x7a0, &(0x7f0000000140)={@my=0x0}) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(r4, 0x7a6, 0x0) sendmsg$nl_route(r0, 0x0, 0x0) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$NFT_BATCH-openat$vmci-ioctl$IOCTL_VMCI_INIT_CONTEXT-ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r3, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000020000000900010073797a300000000040000000030a09020000000000000000020000000900010073797a30000000000900030073797a3200000000140004800800014000000000080002400000000014000000110001"], 0x88}}, 0x0) r4 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) ioctl$IOCTL_VMCI_INIT_CONTEXT(r4, 0x7a0, &(0x7f0000000140)={@my=0x0}) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(r4, 0x7a6, 0x0) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$NFT_BATCH-openat$vmci-ioctl$IOCTL_VMCI_INIT_CONTEXT-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r3, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000020000000900010073797a300000000040000000030a09020000000000000000020000000900010073797a30000000000900030073797a3200000000140004800800014000000000080002400000000014000000110001"], 0x88}}, 0x0) r4 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) ioctl$IOCTL_VMCI_INIT_CONTEXT(r4, 0x7a0, &(0x7f0000000140)={@my=0x0}) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$NFT_BATCH-openat$vmci-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r3, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000020000000900010073797a300000000040000000030a09020000000000000000020000000900010073797a30000000000900030073797a3200000000140004800800014000000000080002400000000014000000110001"], 0x88}}, 0x0) openat$vmci(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$NFT_BATCH-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r3, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000020000000900010073797a300000000040000000030a09020000000000000000020000000900010073797a30000000000900030073797a3200000000140004800800014000000000080002400000000014000000110001"], 0x88}}, 0x0) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) socket$nl_netfilter(0x10, 0x3, 0xc) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) socket$nl_netfilter(0x10, 0x3, 0xc) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$sock_SIOCGIFINDEX-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'xfrm0\x00'}) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-socket$packet-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) socket$packet(0x11, 0x2, 0x300) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-socket$nl_route-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) socket$nl_route(0x10, 0x3, 0x0) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev 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}}): mkdirat-mount-openat-write-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) ioctl$BLKPG(0xffffffffffffffff, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) r0 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r0, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) write(0xffffffffffffffff, &(0x7f0000000000)='270', 0x3) r0 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r0, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, 0x0, &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, 0x0, 0x0) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000), 0x0) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(0x0, 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, 0x0) program did not crash 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, 0x0}) program did not crash extracting C reproducer testing compiled C 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG program did not crash simplifying guilty program options testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev extracting C reproducer testing compiled C program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG program did not crash testing program (duration=30s, {Threaded:false 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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev validation run: crashed=true testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program crashed: WARNING in add_mtd_blktrans_dev validation run: crashed=true testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false testing program (duration=30s, {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}}): mkdirat-mount-openat-write-syz_open_dev$mtd-ioctl$BLKPG detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x12c) write(r0, &(0x7f0000000000)='270', 0x3) r1 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2) ioctl$BLKPG(r1, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}}) program did not crash validation run: crashed=false reproducing took 58m30.660930529s repro crashed as (corrupted=false): RAX: ffffffffffffffda RBX: 00007fe8e56cefa0 RCX: 00007fe8e5447199 RDX: 00002000000000c0 RSI: 0000000000001269 RDI: 0000000000000004 RBP: 00007fe8e54de8e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe8e56cefac R14: 00007fe8e56cefa0 R15: 00007fe8e56cefa0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4385 at block/genhd.c:554 device_add_disk+0x8d6/0xde0 block/genhd.c:552 Modules linked in: CPU: 1 PID: 4385 Comm: syz.1.18 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:device_add_disk+0x8d6/0xde0 block/genhd.c:554 Code: 04 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 8f 03 00 00 8b 33 48 c7 c7 40 f6 90 8c e8 b1 3d 37 00 eb 05 e8 ea 04 a6 fd <0f> 0b 41 bd 01 00 00 00 44 89 e8 48 83 c4 50 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000356f470 EFLAGS: 00010293 RAX: ffffffff83d31e76 RBX: ffff888079c80800 RCX: ffff88801f701dc0 RDX: 0000000000000000 RSI: 000000000000001f RDI: 0000000000000103 RBP: 000000000000001f R08: ffff888141bfa1db R09: 1ffff1102837f43b R10: dffffc0000000000 R11: ffffed102837f43c R12: ffff888017122f40 R13: ffff888079c80950 R14: dffffc0000000000 R15: ffff888017122f40 FS: 000055558dd96500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005624758347d0 CR3: 0000000017ba8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: add_mtd_blktrans_dev+0xfb1/0x13f0 drivers/mtd/mtd_blkdevs.c:387 mtdblock_add_mtd+0x186/0x240 drivers/mtd/mtdblock.c:333 blktrans_notify_add+0x95/0xe0 drivers/mtd/mtd_blkdevs.c:464 add_mtd_device+0xd40/0x1260 drivers/mtd/mtdcore.c:693 mtd_add_partition+0x25d/0x420 drivers/mtd/mtdpart.c:273 mtdchar_blkpg_ioctl+0x283/0x2b0 drivers/mtd/mtdchar.c:562 mtdchar_ioctl+0x14cb/0x1d70 drivers/mtd/mtdchar.c:1010 mtdchar_unlocked_ioctl+0xad/0xd0 drivers/mtd/mtdchar.c:1033 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fe8e5447199 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:00007ffcb846e3e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe8e56cefa0 RCX: 00007fe8e5447199 RDX: 00002000000000c0 RSI: 0000000000001269 RDI: 0000000000000004 RBP: 00007fe8e54de8e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe8e56cefac R14: 00007fe8e56cefa0 R15: 00007fe8e56cefa0 final repro crashed as (corrupted=false): RAX: ffffffffffffffda RBX: 00007fe8e56cefa0 RCX: 00007fe8e5447199 RDX: 00002000000000c0 RSI: 0000000000001269 RDI: 0000000000000004 RBP: 00007fe8e54de8e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe8e56cefac R14: 00007fe8e56cefa0 R15: 00007fe8e56cefa0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4385 at block/genhd.c:554 device_add_disk+0x8d6/0xde0 block/genhd.c:552 Modules linked in: CPU: 1 PID: 4385 Comm: syz.1.18 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:device_add_disk+0x8d6/0xde0 block/genhd.c:554 Code: 04 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 8f 03 00 00 8b 33 48 c7 c7 40 f6 90 8c e8 b1 3d 37 00 eb 05 e8 ea 04 a6 fd <0f> 0b 41 bd 01 00 00 00 44 89 e8 48 83 c4 50 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000356f470 EFLAGS: 00010293 RAX: ffffffff83d31e76 RBX: ffff888079c80800 RCX: ffff88801f701dc0 RDX: 0000000000000000 RSI: 000000000000001f RDI: 0000000000000103 RBP: 000000000000001f R08: ffff888141bfa1db R09: 1ffff1102837f43b R10: dffffc0000000000 R11: ffffed102837f43c R12: ffff888017122f40 R13: ffff888079c80950 R14: dffffc0000000000 R15: ffff888017122f40 FS: 000055558dd96500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005624758347d0 CR3: 0000000017ba8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: add_mtd_blktrans_dev+0xfb1/0x13f0 drivers/mtd/mtd_blkdevs.c:387 mtdblock_add_mtd+0x186/0x240 drivers/mtd/mtdblock.c:333 blktrans_notify_add+0x95/0xe0 drivers/mtd/mtd_blkdevs.c:464 add_mtd_device+0xd40/0x1260 drivers/mtd/mtdcore.c:693 mtd_add_partition+0x25d/0x420 drivers/mtd/mtdpart.c:273 mtdchar_blkpg_ioctl+0x283/0x2b0 drivers/mtd/mtdchar.c:562 mtdchar_ioctl+0x14cb/0x1d70 drivers/mtd/mtdchar.c:1010 mtdchar_unlocked_ioctl+0xad/0xd0 drivers/mtd/mtdchar.c:1033 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fe8e5447199 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:00007ffcb846e3e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe8e56cefa0 RCX: 00007fe8e5447199 RDX: 00002000000000c0 RSI: 0000000000001269 RDI: 0000000000000004 RBP: 00007fe8e54de8e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe8e56cefac R14: 00007fe8e56cefa0 R15: 00007fe8e56cefa0