Extracting prog: 2m31.331329529s
Minimizing prog: 6m9.007685656s
Simplifying prog options: 0s
Extracting C: 46.784676027s
Simplifying C: 9m47.413716861s


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:6 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(&(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=1m4.943501947s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=1m4.943501947s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=1m4.943501947s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=1m4.943501947s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=1m4.943501947s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
simplifying C reproducer
testing compiled C program (duration=1m4.943501947s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$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=1m4.943501947s, {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$LOOP_SET_BLOCK_SIZE
program did not crash
testing compiled C program (duration=1m4.943501947s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$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=1m4.943501947s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
testing compiled C program (duration=1m4.943501947s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$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=1m4.943501947s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
testing compiled C program (duration=1m4.943501947s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
reproducing took 19m14.537428446s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy_from_iter lib/iov_iter.c:73 [inline]
BUG: KASAN: slab-out-of-bounds in iterate_bvec include/linux/iov_iter.h:123 [inline]
BUG: KASAN: slab-out-of-bounds in iterate_and_advance2 include/linux/iov_iter.h:304 [inline]
BUG: KASAN: slab-out-of-bounds in iterate_and_advance include/linux/iov_iter.h:328 [inline]
BUG: KASAN: slab-out-of-bounds in __copy_from_iter lib/iov_iter.c:249 [inline]
BUG: KASAN: slab-out-of-bounds in copy_page_from_iter_atomic+0x92c/0x1f40 lib/iov_iter.c:483
Read of size 4096 at addr ffff8880288e6000 by task kworker/u8:3/52

CPU: 0 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: loop4 loop_rootcg_workfn
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105
 memcpy_from_iter lib/iov_iter.c:73 [inline]
 iterate_bvec include/linux/iov_iter.h:123 [inline]
 iterate_and_advance2 include/linux/iov_iter.h:304 [inline]
 iterate_and_advance include/linux/iov_iter.h:328 [inline]
 __copy_from_iter lib/iov_iter.c:249 [inline]
 copy_page_from_iter_atomic+0x92c/0x1f40 lib/iov_iter.c:483
 copy_folio_from_iter_atomic include/linux/uio.h:201 [inline]
 generic_perform_write+0x45d/0x6d0 mm/filemap.c:4066
 shmem_file_write_iter+0xf9/0x120 mm/shmem.c:3218
 do_iter_readv_writev+0x602/0x880
 vfs_iter_write+0x23e/0x600 fs/read_write.c:988
 lo_write_bvec drivers/block/loop.c:243 [inline]
 lo_write_simple drivers/block/loop.c:264 [inline]
 do_req_filebacked drivers/block/loop.c:511 [inline]
 loop_handle_cmd drivers/block/loop.c:1910 [inline]
 loop_process_work+0x1435/0x2170 drivers/block/loop.c:1945
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 6745:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:257 [inline]
 __do_kmalloc_node mm/slub.c:4264 [inline]
 __kmalloc_noprof+0x1fc/0x400 mm/slub.c:4276
 kmalloc_noprof include/linux/slab.h:882 [inline]
 hfsplus_read_wrapper+0x465/0x12d0 fs/hfsplus/wrapper.c:179
 hfsplus_fill_super+0x38e/0x1ca0 fs/hfsplus/super.c:419
 mount_bdev+0x20c/0x2d0 fs/super.c:1693
 legacy_get_tree+0xf0/0x190 fs/fs_context.c:662
 vfs_get_tree+0x92/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880288e6000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 0 bytes inside of
 allocated 512-byte region [ffff8880288e6000, ffff8880288e6200)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x288e4
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000002 ffffea0000a23901 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5225, tgid 5225 (udevadm), ts 27517445731, free_ts 26131015716
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x303f/0x3190 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_slab_page+0x6a/0x140 mm/slub.c:2412
 allocate_slab+0x5a/0x2f0 mm/slub.c:2578
 new_slab mm/slub.c:2631 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818
 __slab_alloc+0x58/0xa0 mm/slub.c:3908
 __slab_alloc_node mm/slub.c:3961 [inline]
 slab_alloc_node mm/slub.c:4122 [inline]
 __kmalloc_cache_noprof+0x1d5/0x2c0 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 kzalloc_noprof include/linux/slab.h:1014 [inline]
 kernfs_fop_open+0x3e0/0xd10 fs/kernfs/file.c:623
 do_dentry_open+0x97a/0x1460 fs/open.c:958
 vfs_open+0x3e/0x330 fs/open.c:1088
 do_open fs/namei.c:3774 [inline]
 path_openat+0x2c84/0x3590 fs/namei.c:3933
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
page last free pid 5222 tgid 5222 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0xaac/0x17a0 kernel/rcu/tree.c:2823
 handle_softirqs+0x2c7/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738

Memory state around the buggy address:
 ffff8880288e6100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880288e6180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880288e6200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff8880288e6280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880288e6300: 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 memcpy_from_iter lib/iov_iter.c:73 [inline]
BUG: KASAN: slab-out-of-bounds in iterate_bvec include/linux/iov_iter.h:123 [inline]
BUG: KASAN: slab-out-of-bounds in iterate_and_advance2 include/linux/iov_iter.h:304 [inline]
BUG: KASAN: slab-out-of-bounds in iterate_and_advance include/linux/iov_iter.h:328 [inline]
BUG: KASAN: slab-out-of-bounds in __copy_from_iter lib/iov_iter.c:249 [inline]
BUG: KASAN: slab-out-of-bounds in copy_page_from_iter_atomic+0x92c/0x1f40 lib/iov_iter.c:483
Read of size 4096 at addr ffff8880288e6000 by task kworker/u8:3/52

CPU: 0 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: loop4 loop_rootcg_workfn
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105
 memcpy_from_iter lib/iov_iter.c:73 [inline]
 iterate_bvec include/linux/iov_iter.h:123 [inline]
 iterate_and_advance2 include/linux/iov_iter.h:304 [inline]
 iterate_and_advance include/linux/iov_iter.h:328 [inline]
 __copy_from_iter lib/iov_iter.c:249 [inline]
 copy_page_from_iter_atomic+0x92c/0x1f40 lib/iov_iter.c:483
 copy_folio_from_iter_atomic include/linux/uio.h:201 [inline]
 generic_perform_write+0x45d/0x6d0 mm/filemap.c:4066
 shmem_file_write_iter+0xf9/0x120 mm/shmem.c:3218
 do_iter_readv_writev+0x602/0x880
 vfs_iter_write+0x23e/0x600 fs/read_write.c:988
 lo_write_bvec drivers/block/loop.c:243 [inline]
 lo_write_simple drivers/block/loop.c:264 [inline]
 do_req_filebacked drivers/block/loop.c:511 [inline]
 loop_handle_cmd drivers/block/loop.c:1910 [inline]
 loop_process_work+0x1435/0x2170 drivers/block/loop.c:1945
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 6745:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:257 [inline]
 __do_kmalloc_node mm/slub.c:4264 [inline]
 __kmalloc_noprof+0x1fc/0x400 mm/slub.c:4276
 kmalloc_noprof include/linux/slab.h:882 [inline]
 hfsplus_read_wrapper+0x465/0x12d0 fs/hfsplus/wrapper.c:179
 hfsplus_fill_super+0x38e/0x1ca0 fs/hfsplus/super.c:419
 mount_bdev+0x20c/0x2d0 fs/super.c:1693
 legacy_get_tree+0xf0/0x190 fs/fs_context.c:662
 vfs_get_tree+0x92/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880288e6000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 0 bytes inside of
 allocated 512-byte region [ffff8880288e6000, ffff8880288e6200)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x288e4
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000002 ffffea0000a23901 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5225, tgid 5225 (udevadm), ts 27517445731, free_ts 26131015716
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x303f/0x3190 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_slab_page+0x6a/0x140 mm/slub.c:2412
 allocate_slab+0x5a/0x2f0 mm/slub.c:2578
 new_slab mm/slub.c:2631 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818
 __slab_alloc+0x58/0xa0 mm/slub.c:3908
 __slab_alloc_node mm/slub.c:3961 [inline]
 slab_alloc_node mm/slub.c:4122 [inline]
 __kmalloc_cache_noprof+0x1d5/0x2c0 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 kzalloc_noprof include/linux/slab.h:1014 [inline]
 kernfs_fop_open+0x3e0/0xd10 fs/kernfs/file.c:623
 do_dentry_open+0x97a/0x1460 fs/open.c:958
 vfs_open+0x3e/0x330 fs/open.c:1088
 do_open fs/namei.c:3774 [inline]
 path_openat+0x2c84/0x3590 fs/namei.c:3933
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
page last free pid 5222 tgid 5222 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0xaac/0x17a0 kernel/rcu/tree.c:2823
 handle_softirqs+0x2c7/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738

Memory state around the buggy address:
 ffff8880288e6100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880288e6180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880288e6200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff8880288e6280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880288e6300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================