ci2 starts bisection 2023-06-06 19:38:19.684366907 +0000 UTC m=+427723.331274573
bisecting fixing commit since ca48fc16c49388400eddd6c6614593ebf7c7726a
building syzkaller on 90c93c40627cb0ac3c2c7cb99d807fd4c137adcb
ensuring issue is reproducible on original commit ca48fc16c49388400eddd6c6614593ebf7c7726a

testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: badc348b0fc30bfa7845492478afa03058f82d4590d5edb46fb0291975e88571
run #0: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #1: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #2: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #3: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #4: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #5: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #6: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #7: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #8: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #9: crashed: KASAN: out-of-bounds Read in ntfs_read_folio
run #10: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #11: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #12: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #13: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #14: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #15: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #16: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #17: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #18: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #19: crashed: KASAN: use-after-free Read in ntfs_read_folio
testing current HEAD 76ba310227d2490018c271f1ecabb6c0a3212eb0
testing commit 76ba310227d2490018c271f1ecabb6c0a3212eb0 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 9b97ae13862aec16fea3cb8c4c971836daddf3254cd744c466f9df8c4b347478
run #0: crashed: KASAN: out-of-bounds Read in ntfs_read_folio
run #1: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #2: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #3: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #4: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #5: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #6: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #7: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #8: crashed: KASAN: use-after-free Read in ntfs_read_folio
run #9: crashed: KASAN: use-after-free Read in ntfs_read_folio
crash still not fixed/happens on the oldest tested release
revisions tested: 2, total time: 33m47.308366404s (build: 26m55.136884736s, test: 6m27.655202122s)
crash still not fixed on HEAD or HEAD had kernel test errors
commit msg: Linux 6.1.32
crash: KASAN: use-after-free Read in ntfs_read_folio
ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -5.  Marking corrupt inode 0xa as bad.  Run chkdsk.
ntfs: (device loop0): load_and_init_upcase(): Failed to load $UpCase from the volume. Using default.
==================================================================
BUG: KASAN: use-after-free in ntfs_read_folio+0x7c6/0x2020 fs/ntfs/aops.c:489
Read of size 1 at addr ffff88806e78317f by task syz-executor.0/3972

CPU: 1 PID: 3972 Comm: syz-executor.0 Not tainted 6.1.32-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x163/0x213 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189
 memcpy+0x25/0x60 mm/kasan/shadow.c:65
 ntfs_read_folio+0x7c6/0x2020 fs/ntfs/aops.c:489
 filemap_read_folio+0x14a/0x520 mm/filemap.c:2407
 do_read_cache_folio+0x239/0x560 mm/filemap.c:3535
 do_read_cache_page+0xf/0x150 mm/filemap.c:3577
 read_mapping_page include/linux/pagemap.h:756 [inline]
 ntfs_map_page fs/ntfs/aops.h:75 [inline]
 load_and_init_attrdef fs/ntfs/super.c:1609 [inline]
 load_system_files+0x1df5/0x3ff0 fs/ntfs/super.c:1817
 ntfs_fill_super+0x14e6/0x28b0 fs/ntfs/super.c:2892
 mount_bdev+0x27c/0x370 fs/super.c:1423
 legacy_get_tree+0xe5/0x170 fs/fs_context.c:610
 vfs_get_tree+0x7b/0x220 fs/super.c:1553
 do_new_mount+0x1e1/0x930 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x22e/0x2c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff13f88d69a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff140618f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000000097e RCX: 00007ff13f88d69a
RDX: 0000000020000040 RSI: 000000002001f200 RDI: 00007ff140618fe0
RBP: 00007ff140619020 R08: 00007ff140619020 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000040
R13: 000000002001f200 R14: 00007ff140618fe0 R15: 0000000020000000
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0001b9e0c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x6e783
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0001b99288 ffffea0001b42cc8 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 3744, tgid 3744 (dhcpcd), ts 71101276138, free_ts 71118051418
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2533
 prep_new_page mm/page_alloc.c:2540 [inline]
 get_page_from_freelist+0x32ed/0x3480 mm/page_alloc.c:4292
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5559
 __folio_alloc+0xf/0x30 mm/page_alloc.c:5591
 vma_alloc_folio+0x304/0x680 mm/mempolicy.c:2241
 alloc_page_vma include/linux/gfp.h:284 [inline]
 wp_page_copy+0x21d/0x12a0 mm/memory.c:3114
 handle_pte_fault mm/memory.c:4982 [inline]
 __handle_mm_fault mm/memory.c:5106 [inline]
 handle_mm_fault+0x1ef3/0x3eb0 mm/memory.c:5227
 do_user_addr_fault arch/x86/mm/fault.c:1428 [inline]
 handle_page_fault arch/x86/mm/fault.c:1519 [inline]
 exc_page_fault+0x58d/0x790 arch/x86/mm/fault.c:1575
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1460 [inline]
 free_pcp_prepare mm/page_alloc.c:1510 [inline]
 free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3388
 free_unref_page_list+0x107/0x810 mm/page_alloc.c:3530
 release_pages+0x1f1b/0x20f0 mm/swap.c:1055
 tlb_batch_pages_flush mm/mmu_gather.c:59 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:254 [inline]
 tlb_flush_mmu+0xe5/0x1e0 mm/mmu_gather.c:261
 tlb_finish_mmu+0xb0/0x1b0 mm/mmu_gather.c:361
 exit_mmap+0x344/0x810 mm/mmap.c:3139
 __mmput+0xcb/0x300 kernel/fork.c:1191
 exit_mm+0x1ea/0x290 kernel/exit.c:563
 do_exit+0x5af/0x1dd0 kernel/exit.c:856
 do_group_exit+0x1b5/0x280 kernel/exit.c:1019
 __do_sys_exit_group kernel/exit.c:1030 [inline]
 __se_sys_exit_group kernel/exit.c:1028 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff88806e783000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88806e783080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88806e783100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                                ^
 ffff88806e783180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88806e783200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================