loop0: detected capacity change from 0 to 32768 ================================================================== BUG: KASAN: slab-out-of-bounds in diWrite+0xde3/0x19b0 fs/jfs/jfs_imap.c:750 Write of size 32 at addr ffff888020fb60c0 by task syz-executor151/5069 CPU: 0 PID: 5069 Comm: syz-executor151 Not tainted 6.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 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+0x40/0x70 mm/kasan/shadow.c:106 diWrite+0xde3/0x19b0 fs/jfs/jfs_imap.c:750 txCommit+0xa1a/0x6a20 fs/jfs/jfs_txnmgr.c:1255 add_missing_indices fs/jfs/jfs_dtree.c:2661 [inline] jfs_readdir+0x28e9/0x4660 fs/jfs/jfs_dtree.c:3009 wrap_directory_iterator+0x94/0xe0 fs/readdir.c:67 iterate_dir+0x539/0x6f0 fs/readdir.c:110 __do_sys_getdents64 fs/readdir.c:409 [inline] __se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:394 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0fcc027ad9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe74170c18 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0fcc027ad9 RDX: 000000000000005d RSI: 00000000200002c0 RDI: 0000000000000005 RBP: 00007f0fcc0a05f0 R08: 000055557fa294c0 R09: 000055557fa294c0 R10: 000055557fa294c0 R11: 0000000000000246 R12: 00007ffe74170c40 R13: 00007ffe74170e68 R14: 431bde82d7b634db R15: 00007f0fcc07003b Allocated by task 5069: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3798 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc+0x174/0x340 mm/slub.c:3852 ima_inode_get+0xf3/0x4b0 security/integrity/ima/ima_iint.c:99 process_measurement+0x45d/0x1f60 security/integrity/ima/ima_main.c:251 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:559 security_file_post_open+0x6d/0xa0 security/security.c:2981 do_open fs/namei.c:3644 [inline] path_openat+0x28b7/0x3240 fs/namei.c:3799 do_filp_open+0x235/0x490 fs/namei.c:3826 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_openat fs/open.c:1437 [inline] __se_sys_openat fs/open.c:1432 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1432 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888020fb6000 which belongs to the cache ima_iint_cache of size 200 The buggy address is located 192 bytes inside of allocated 200-byte region [ffff888020fb6000, ffff888020fb60c8) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20fb6 flags: 0xfff80000000800(slab|node=0|zone=1|lastcpupid=0xfff) page_type: 0xffffffff() raw: 00fff80000000800 ffff8880162a7640 dead000000000122 0000000000000000 raw: 0000000000000000 00000000800f000f 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 5069, tgid -154916118 (syz-executor151), ts 5069, free_ts 70835926294 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1534 prep_new_page mm/page_alloc.c:1541 [inline] get_page_from_freelist+0x3410/0x35b0 mm/page_alloc.c:3317 __alloc_pages+0x256/0x6c0 mm/page_alloc.c:4575 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page+0x5f/0x160 mm/slub.c:2175 allocate_slab mm/slub.c:2338 [inline] new_slab+0x84/0x2f0 mm/slub.c:2391 ___slab_alloc+0xc73/0x1260 mm/slub.c:3525 __slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x252/0x340 mm/slub.c:3852 ima_inode_get+0xf3/0x4b0 security/integrity/ima/ima_iint.c:99 process_measurement+0x45d/0x1f60 security/integrity/ima/ima_main.c:251 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:559 security_file_post_open+0x6d/0xa0 security/security.c:2981 do_open fs/namei.c:3644 [inline] path_openat+0x28b7/0x3240 fs/namei.c:3799 do_filp_open+0x235/0x490 fs/namei.c:3826 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_openat fs/open.c:1437 [inline] __se_sys_openat fs/open.c:1432 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1432 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 page last free pid 5063 tgid 5063 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1141 [inline] free_unref_page_prepare+0x97b/0xaa0 mm/page_alloc.c:2347 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487 discard_slab mm/slub.c:2437 [inline] __put_partials+0xeb/0x130 mm/slub.c:2906 put_cpu_partial+0x17c/0x250 mm/slub.c:2981 __slab_free+0x2ea/0x3d0 mm/slub.c:4151 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3798 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc+0x174/0x340 mm/slub.c:3852 getname_flags+0xbd/0x4f0 fs/namei.c:139 vfs_fstatat+0x11c/0x190 fs/stat.c:303 __do_sys_newfstatat fs/stat.c:468 [inline] __se_sys_newfstatat fs/stat.c:462 [inline] __x64_sys_newfstatat+0x117/0x190 fs/stat.c:462 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888020fb5f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888020fb6000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888020fb6080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc ^ ffff888020fb6100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888020fb6180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================