Extracting prog: 1m52.505040039s Minimizing prog: 2m57.391384015s Simplifying prog options: 0s Extracting C: 25.636059325s Simplifying C: 10m16.952838415s 1 programs, 3 VMs, timeouts [15s 6m0s] extracting reproducer from 1 programs single: executing 1 programs separately with timeout 15s testing program (duration=15s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x800000, &(0x7f0000000240)={[{@gid}, {@gid={'gid', 0x3d, 0xee00}}, {@nls={'nls', 0x3d, 'cp862'}}, {@nodecompose}, {@umask={'umask', 0x3d, 0x2}}, {@umask={'umask', 0x3d, 0x4}}]}, 0x7, 0x64b, &(0x7f00000009c0)="$eJzs3c1rHOcdB/DvrFZryQ2uktiJKYEKG9KCqK0XlFa91C2l6BBKSA89C1uOhddykJSihFLU91Ohh/wBaUG3ngq9u7jn9JarjoFCL6EH31xmdtZaSStH1ttK7edjZp9n9nnmmd/8dl52di02wP+t+Yk0H6XI/MTb6+X81uZMe2tz5kLd3E5S1htJs1OkWE6Kx8mtsr3omdJT7vHx0ty7n32x9XlnrllPVf/G85Y7mI16yniSobrca/hQ491O8tKeLq2DjrWjY5m063UJA/d0j40XWfyIxy0wSN2rU9G5bu4xllxMMlK/D0h9dmicXoQn44XOcgAAAHBOffpw0BEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADA+VP//n9RT426zHiK7u//t7rP1fVz7dGgAwAAAAAAAACAY/D1J3mS9Vzqzj8tqu/8r1Uzl6vHr+SDrGYxK7mR9SxkLWtZyVSSsZ6BWusLa2srUwdYcrrvktOns70AAAAAAAAA8D/qV5nf/v4fAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADOgiIZ6hTVdLlbH0ujmU5bq+y3kfyzWz8nin5PPjr9OAAAAOBIRg6xzFef5EnWc6k7/7So7vlfq+6XR/JBlrOWpaylncXcqe+hy7v+xtbmTHtrc+ZBOe0d9/v/fqEwqhHrzxf6r/lq1WM0d7NUPXMjt6tg7qRRLVm62o2nf1y/LGMqvlc7YGTNuixX9sf9PkUYiLE6uG5GJuvYymy83MlAUX1Qk+zOxJe+Os3da0ojw8/WNJXGs09+Lp9Azi/WZbk9vztrOe9kopEqE9M9e99rz89E8o2//eWn99rL9+/dXZ04O5t0SLv3iZmeTLx+rjPRfMH+k1Umrjybn8+P8pNMZDzvZCVL+VkWspbFPK3bF+r9uXwce36mbu2Ye+fLImnVr0vnLHqQmMbzw6q2kGvVspeylCIPcyeLeav6N52pfDuzmc1czyt8Zd+4q22rjvrGfkf93/sGf/2bdWU0ye/rctA6l9Qyry/35HW455w7VrX1PrOdpVe62RnuO/hhzo3Nr9WVch2/rsuzYXcmpnoy8erz9/M/VcfGanv5/sq9hff3GX9j1/ybdVnucb898FWi/0txvMr95ZWM1GeSnXtH2fbqs7PMzny16m9cOm2NPW1Xqrai6B6pP973SG3V7+H2jjRdtb3et22marva07bj/VYepp07p5A/AI5oLBdbo/8a/XT0k9HfjN4bfXvkBxe+c+GNVob/Mfzd5uTQm403ir/mk/xi+/4fAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA4vNUPP7q/0G4vrvSvNPZvOt5KUf+Qz2ms6zQqI0nOQBhntNL9EcH+ff5w8AFvnYnNOdeVoST9mgZ8YgJO3M21B+/fXP3wo28tPVh4b/G9xeXh2dm5ybnZt2Zu3l1qL052HgcdJXASti/6g44EAAAAAAAAAAAAOKh+fxhw7aXj+NuVlv9ZCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAByL+Yk0H6XI1OSNyXJ+a3OmXU7d+nbPZpJGIyl+nhSPk1vpTBnrGa7Inx/3Xc/HS3PvfvbF1ufbYzU7/ZNGXR7BRj1lPMlQXR7XeLePPF7xn+4Wlgm73k0cDNp/AwAA///HI/hg") r0 = syz_open_dev$loop(&(0x7f00000001c0), 0x0, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x800) program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write single: successfully extracted reproducer found reproducer with 3 syscalls minimizing guilty program testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x800000, &(0x7f0000000240)={[{@gid}, {@gid={'gid', 0x3d, 0xee00}}, {@nls={'nls', 0x3d, 'cp862'}}, {@nodecompose}, {@umask={'umask', 0x3d, 0x2}}, {@umask={'umask', 0x3d, 0x4}}]}, 0x7, 0x64b, &(0x7f00000009c0)="$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") syz_open_dev$loop(&(0x7f00000001c0), 0x0, 0x0) program did not crash testing program (duration=22.5s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-ioctl$LOOP_SET_BLOCK_SIZE detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x800000, &(0x7f0000000240)={[{@gid}, {@gid={'gid', 0x3d, 0xee00}}, {@nls={'nls', 0x3d, 'cp862'}}, {@nodecompose}, {@umask={'umask', 0x3d, 0x2}}, {@umask={'umask', 0x3d, 0x4}}]}, 0x7, 0x64b, &(0x7f00000009c0)="$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") ioctl$LOOP_SET_BLOCK_SIZE(0xffffffffffffffff, 0x4c09, 0x800) program did not crash testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE detailed listing: executing program 0: r0 = syz_open_dev$loop(&(0x7f00000001c0), 0x0, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x800) program did not crash testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x800000, &(0x7f0000000240)={[{@gid}, {@gid={'gid', 0x3d, 0xee00}}, {@nls={'nls', 0x3d, 'cp862'}}, {@nodecompose}, {@umask={'umask', 0x3d, 0x2}}, {@umask={'umask', 0x3d, 0x4}}]}, 0x7, 0x64b, &(0x7f00000009c0)="$eJzs3c1rHOcdB/DvrFZryQ2uktiJKYEKG9KCqK0XlFa91C2l6BBKSA89C1uOhddykJSihFLU91Ohh/wBaUG3ngq9u7jn9JarjoFCL6EH31xmdtZaSStH1ttK7edjZp9n9nnmmd/8dl52di02wP+t+Yk0H6XI/MTb6+X81uZMe2tz5kLd3E5S1htJs1OkWE6Kx8mtsr3omdJT7vHx0ty7n32x9XlnrllPVf/G85Y7mI16yniSobrca/hQ491O8tKeLq2DjrWjY5m063UJA/d0j40XWfyIxy0wSN2rU9G5bu4xllxMMlK/D0h9dmicXoQn44XOcgAAAHBOffpw0BEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADA+VP//n9RT426zHiK7u//t7rP1fVz7dGgAwAAAAAAAACAY/D1J3mS9Vzqzj8tqu/8r1Uzl6vHr+SDrGYxK7mR9SxkLWtZyVSSsZ6BWusLa2srUwdYcrrvktOns70AAAAAAAAA8D/qV5nf/v4fAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADOgiIZ6hTVdLlbH0ujmU5bq+y3kfyzWz8nin5PPjr9OAAAAOBIRg6xzFef5EnWc6k7/7So7vlfq+6XR/JBlrOWpaylncXcqe+hy7v+xtbmTHtrc+ZBOe0d9/v/fqEwqhHrzxf6r/lq1WM0d7NUPXMjt6tg7qRRLVm62o2nf1y/LGMqvlc7YGTNuixX9sf9PkUYiLE6uG5GJuvYymy83MlAUX1Qk+zOxJe+Os3da0ojw8/WNJXGs09+Lp9Azi/WZbk9vztrOe9kopEqE9M9e99rz89E8o2//eWn99rL9+/dXZ04O5t0SLv3iZmeTLx+rjPRfMH+k1Umrjybn8+P8pNMZDzvZCVL+VkWspbFPK3bF+r9uXwce36mbu2Ye+fLImnVr0vnLHqQmMbzw6q2kGvVspeylCIPcyeLeav6N52pfDuzmc1czyt8Zd+4q22rjvrGfkf93/sGf/2bdWU0ye/rctA6l9Qyry/35HW455w7VrX1PrOdpVe62RnuO/hhzo3Nr9WVch2/rsuzYXcmpnoy8erz9/M/VcfGanv5/sq9hff3GX9j1/ybdVnucb898FWi/0txvMr95ZWM1GeSnXtH2fbqs7PMzny16m9cOm2NPW1Xqrai6B6pP973SG3V7+H2jjRdtb3et22marva07bj/VYepp07p5A/AI5oLBdbo/8a/XT0k9HfjN4bfXvkBxe+c+GNVob/Mfzd5uTQm403ir/mk/xi+/4fAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA4vNUPP7q/0G4vrvSvNPZvOt5KUf+Qz2ms6zQqI0nOQBhntNL9EcH+ff5w8AFvnYnNOdeVoST9mgZ8YgJO3M21B+/fXP3wo28tPVh4b/G9xeXh2dm5ybnZt2Zu3l1qL052HgcdJXASti/6g44EAAAAAAAAAAAAOKh+fxhw7aXj+NuVlv9ZCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAByL+Yk0H6XI1OSNyXJ+a3OmXU7d+nbPZpJGIyl+nhSPk1vpTBnrGa7Inx/3Xc/HS3PvfvbF1ufbYzU7/ZNGXR7BRj1lPMlQXR7XeLePPF7xn+4Wlgm73k0cDNp/AwAA///HI/hg") r0 = syz_open_dev$loop(0x0, 0x0, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x800) program did not crash extracting C reproducer testing compiled C program (duration=22.5s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write simplifying C reproducer testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Write in shmem_file_read_iter testing compiled C program (duration=22.5s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash reproducing took 15m32.485341553s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-out-of-bounds in copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978 Read of size 2048 at addr ffff0000d5b9c000 by task kworker/u4:4/388 CPU: 1 PID: 388 Comm: kworker/u4:4 Not tainted 5.15.160-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: loop0 loop_rootcg_workfn Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x174/0x1e4 mm/kasan/report.c:451 kasan_check_range+0x274/0x2b4 mm/kasan/generic.c:189 memcpy+0x90/0xe8 mm/kasan/shadow.c:65 copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978 generic_perform_write+0x2d0/0x520 mm/filemap.c:3793 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944 do_iter_readv_writev+0x420/0x5f8 do_iter_write+0x1b8/0x664 fs/read_write.c:855 vfs_iter_write+0x88/0xac fs/read_write.c:896 lo_write_bvec+0x394/0xb4c drivers/block/loop.c:316 lo_write_simple drivers/block/loop.c:338 [inline] do_req_filebacked drivers/block/loop.c:656 [inline] loop_handle_cmd drivers/block/loop.c:2234 [inline] loop_process_work+0x1f24/0x2798 drivers/block/loop.c:2274 loop_rootcg_workfn+0x28/0x38 drivers/block/loop.c:2305 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 Allocated by task 3969: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc+0x29c/0x4c8 mm/slub.c:4407 kmalloc include/linux/slab.h:596 [inline] hfsplus_read_wrapper+0x3b8/0xfc8 fs/hfsplus/wrapper.c:180 hfsplus_fill_super+0x2f0/0x167c fs/hfsplus/super.c:413 mount_bdev+0x274/0x370 fs/super.c:1387 hfsplus_mount+0x44/0x58 fs/hfsplus/super.c:641 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1517 do_new_mount+0x278/0x8fc fs/namespace.c:3005 path_mount+0x594/0x101c fs/namespace.c:3335 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount fs/namespace.c:3533 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3533 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000d5b9c000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 0 bytes inside of 512-byte region [ffff0000d5b9c000, ffff0000d5b9c200) The buggy address belongs to the page: page:0000000006416830 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115b9c head:0000000006416830 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002600 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d5b9c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000d5b9c180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000d5b9c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000d5b9c280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d5b9c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-out-of-bounds in copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978 Read of size 2048 at addr ffff0000d5b9c000 by task kworker/u4:4/388 CPU: 1 PID: 388 Comm: kworker/u4:4 Not tainted 5.15.160-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: loop0 loop_rootcg_workfn Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x174/0x1e4 mm/kasan/report.c:451 kasan_check_range+0x274/0x2b4 mm/kasan/generic.c:189 memcpy+0x90/0xe8 mm/kasan/shadow.c:65 copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978 generic_perform_write+0x2d0/0x520 mm/filemap.c:3793 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944 do_iter_readv_writev+0x420/0x5f8 do_iter_write+0x1b8/0x664 fs/read_write.c:855 vfs_iter_write+0x88/0xac fs/read_write.c:896 lo_write_bvec+0x394/0xb4c drivers/block/loop.c:316 lo_write_simple drivers/block/loop.c:338 [inline] do_req_filebacked drivers/block/loop.c:656 [inline] loop_handle_cmd drivers/block/loop.c:2234 [inline] loop_process_work+0x1f24/0x2798 drivers/block/loop.c:2274 loop_rootcg_workfn+0x28/0x38 drivers/block/loop.c:2305 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 Allocated by task 3969: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc+0x29c/0x4c8 mm/slub.c:4407 kmalloc include/linux/slab.h:596 [inline] hfsplus_read_wrapper+0x3b8/0xfc8 fs/hfsplus/wrapper.c:180 hfsplus_fill_super+0x2f0/0x167c fs/hfsplus/super.c:413 mount_bdev+0x274/0x370 fs/super.c:1387 hfsplus_mount+0x44/0x58 fs/hfsplus/super.c:641 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1517 do_new_mount+0x278/0x8fc fs/namespace.c:3005 path_mount+0x594/0x101c fs/namespace.c:3335 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount fs/namespace.c:3533 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3533 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000d5b9c000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 0 bytes inside of 512-byte region [ffff0000d5b9c000, ffff0000d5b9c200) The buggy address belongs to the page: page:0000000006416830 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115b9c head:0000000006416830 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002600 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d5b9c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000d5b9c180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000d5b9c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000d5b9c280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d5b9c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================