Extracting prog: 1m10.440605342s Minimizing prog: 6m30.524661842s Simplifying prog options: 0s Extracting C: 1m6.287747059s Simplifying C: 8m0.91190742s 1 programs, timeouts [30s 6m0s] extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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(&(0x7f0000000200), &(0x7f0000000080)='./file1\x00', 0x2000050, &(0x7f0000000000)={[{@nobarrier}, {@barrier}, {@nobarrier}, {@uid}, {@nls={'nls', 0x3d, 'ascii'}}]}, 0x0, 0x690, &(0x7f00000007c0)="$eJzs3U9sHGfdB/DvbOxNNq/kOG3S5kVItRopgkYktpeSICEREAIfKhSJS69W4jRWNm5lu8iJEDF/Ckc4oR56KELh0BPigFTEAVHOSEjcc4/EPRdYNLuz9trrLHZiZ53w+Uiz88w88zzPb36eeXZ3omgD/M+aezvj6ykyd/6ttXL7wf1m68H95u1eOcnRJLVkrLtKsZQUnyVX0l3y/+XOqrviceO8+fDTj859+EmzuzVWLZ3ja8PaDdjxyPVqyVSSI9X6KWzp79oO/d3bU3fFRtxlws72Egej1h6wvpfmu79vgUPrXvd9c8BkcjzJsepzQKrZofZso9t/e5rlAAAA4BBonxjYteN3+X4nHuVR1jJxUDEBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADAi6jo/mZgUS21XnkqRe/3/+vVvlTl59gHN0YdAQAAAAAAAADsh9ce5VHWMtHbbhedf/N/vbNxqvP6f3k/K1nIci5kLfNZzWqWM5OMT/R1VF+bX11dnhls+auULdvt9r2q5WySyYGWs8/mfAEAAAAAAADgBfXjzGVi1EEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEC/IjnSXXWWU73yZGpjSY4lqZfHrSd/6pWfZ38edQAAAABw8BrVeqL4d7fQLjrf+V/pfO8/lvezlNUsZjWtLOR651lA91t/7e/rzdaD+83b5TLY8Tf+uac4Oj2m++xh55GnO0ec3mgxl2/nezmfqVzNchbz/cxnNQuZyrfKk8h8ikxWTy8me3HuHO+VLVtXt8f22rbtM51IGrmRxU5sF3Kt3gu9VsV/pm+0P9STbSP+qMxO8fXKLnN0vVqXZ/TLal1pn9hlHwdjsnPm4xsZma5yX2bj5PDc7/E62T7STGobz6BObY5Sbm4f6Ylyfrxal7n+2dac77c9PkrbnonZ1KqrL3lleM6TL/7jL1dv1pZu3byxcv4AT+nZ2J6JZl8mXt1VJlplJtZ3n4nx7TuOPe057I96lY3uLLrb2bIszef1TtuJf7Xz3byb61nIpUxnJpczna9mNs0tV9jp4Xnt3Gu1vd1rZ79QFcr3pJ/3vTeNXpnXk3157Z/pJjt11Z4rv8h0X5Ze2kWW9jgjjX2uKpRj/GTjHecw2JKJam7uRffy8Ez8ul2+rrSWbi3fnH9vl+Odq9blbfvB1rn5N/txPk+uvF5eKv9Yna2TW66Xsu7lHetmOnWnNupqA3WnN+omM5HFIXdqvfoMN9hTt+7VHeuanbozfXVbPuXk3bQ2PoUAcIgdf+N4vfGw8bfGx42fNm423jr2zaOXj36+nvG/jv3xyO9qv619rXgjH+eHmRh1pAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA8CJYuXP31nyrtbD8dIXGPvWzpZDa5p7ezyTt8xCbYxVVob7fPb9ghe8kedLmv08y5Jj6U0dY7Nf1/PhCeREelr/FzoWxIUk4mqHNG33312jnJeDgXVy9/d7FlTt3v7R4e/6dhXcWlmYvX7p8qfmVmS9fvLHYWpjuvo46SuAgrNy5e2TUMQAAAAAAAAAAAAB7c+D/G6G+vDLqcwQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACeb3NvZ3w9RWamL0yX2w/uN1vl0itvHjmWpJak+EFSfJZcSXfJZF93xePGefPhpx+d+/CT5mZfY73ja8Pa7c56tWQqyZFq/d8d3aGbwf6u9fW3/kThFRtnWCbsbC9xMGr/CQAA//+XZwFz") r0 = syz_open_dev$loop(&(0x7f0000000000), 0x4, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x1000) program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write single: successfully extracted reproducer found reproducer with 3 syscalls minimizing guilty program testing program (duration=1m1.054366609s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000200), &(0x7f0000000080)='./file1\x00', 0x2000050, &(0x7f0000000000)={[{@nobarrier}, {@barrier}, {@nobarrier}, {@uid}, {@nls={'nls', 0x3d, 'ascii'}}]}, 0x0, 0x690, &(0x7f00000007c0)="$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") syz_open_dev$loop(&(0x7f0000000000), 0x4, 0x0) program did not crash testing program (duration=1m1.054366609s, {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$hfsplus(&(0x7f0000000200), &(0x7f0000000080)='./file1\x00', 0x2000050, &(0x7f0000000000)={[{@nobarrier}, {@barrier}, {@nobarrier}, {@uid}, {@nls={'nls', 0x3d, 'ascii'}}]}, 0x0, 0x690, &(0x7f00000007c0)="$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") ioctl$LOOP_SET_BLOCK_SIZE(0xffffffffffffffff, 0x4c09, 0x1000) program did not crash testing program (duration=1m1.054366609s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE detailed listing: executing program 0: r0 = syz_open_dev$loop(&(0x7f0000000000), 0x4, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x1000) program did not crash testing program (duration=1m1.054366609s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000200), &(0x7f0000000080)='./file1\x00', 0x2000050, &(0x7f0000000000)={[{@nobarrier}, {@barrier}, {@nobarrier}, {@uid}, {@nls={'nls', 0x3d, 'ascii'}}]}, 0x0, 0x690, &(0x7f00000007c0)="$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") r0 = syz_open_dev$loop(0x0, 0x4, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x1000) program did not crash extracting C reproducer testing compiled C program (duration=1m1.054366609s, {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$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write simplifying C reproducer testing compiled C program (duration=1m1.054366609s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=1m1.054366609s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program did not crash testing compiled C program (duration=1m1.054366609s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$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=1m1.054366609s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=1m1.054366609s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$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=1m1.054366609s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write testing compiled C program (duration=1m1.054366609s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write reproducing took 16m48.164942114s repro crashed as (corrupted=false): hfsplus: b-tree write err: -5, ino 4 ================================================================== 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 ffff0000da30c800 by task kworker/u4:4/522 CPU: 1 PID: 522 Comm: kworker/u4:4 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: loop4 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+0x1b8/0x66c 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 4021: 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:1398 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:1528 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 ffff0000da30c800 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 0 bytes inside of 512-byte region [ffff0000da30c800, ffff0000da30ca00) The buggy address belongs to the page: page:00000000182130a2 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11a30c head:00000000182130a2 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 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000da30c900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000da30c980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000da30ca00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000da30ca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000da30cb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== final repro crashed as (corrupted=false): hfsplus: b-tree write err: -5, ino 4 ================================================================== 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 ffff0000da30c800 by task kworker/u4:4/522 CPU: 1 PID: 522 Comm: kworker/u4:4 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: loop4 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+0x1b8/0x66c 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 4021: 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:1398 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:1528 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 ffff0000da30c800 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 0 bytes inside of 512-byte region [ffff0000da30c800, ffff0000da30ca00) The buggy address belongs to the page: page:00000000182130a2 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11a30c head:00000000182130a2 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 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000da30c900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000da30c980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000da30ca00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000da30ca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000da30cb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================