KASAN: out-of-bounds Read in leaf_insert_into

Date	Name	Commit	Repro	Result
2024/12/26	linux-5.15.y (ToT)	91786f140358	C	[report] KASAN: out-of-bounds Read in leaf_paste_in_buffer
2023/08/21	upstream (ToT)	706a74159504	C	[report] UBSAN: array-index-out-of-bounds in direntry_create_vi
2024/12/26	upstream (ToT)	9b2ffa6148b1	C	Didn't crash

Date

Name

Commit

Repro

Result

2024/12/26

linux-5.15.y (ToT)

91786f140358

[report] KASAN: out-of-bounds Read in leaf_paste_in_buffer

2023/08/21

upstream (ToT)

706a74159504

[report] UBSAN: array-index-out-of-bounds in direntry_create_vi

2024/12/26

upstream (ToT)

9b2ffa6148b1

Didn't crash

Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.1	KASAN: out-of-bounds Read in leaf_insert_into_buf origin:upstream missing-backport	C	error	3	26d	501d	0/3	upstream: reported C repro on 2023/09/02 13:42
upstream	KASAN: use-after-free Read in leaf_insert_into_buf reiserfs			1	730d	726d	0/28	auto-obsoleted due to no activity on 2023/04/17 00:48
upstream	KASAN: use-after-free Read in leaf_insert_into_buf (2) reiserfs			4	566d	597d	0/28	auto-obsoleted due to no activity on 2023/10/07 08:10

linux-6.1

KASAN: out-of-bounds Read in leaf_insert_into_buf origin:upstream missing-backport

error

26d

501d

0/3

upstream: reported C repro on 2023/09/02 13:42

upstream

KASAN: use-after-free Read in leaf_insert_into_buf reiserfs

730d

726d

0/28

auto-obsoleted due to no activity on 2023/04/17 00:48

upstream

KASAN: use-after-free Read in leaf_insert_into_buf (2) reiserfs

566d

597d

0/28

auto-obsoleted due to no activity on 2023/10/07 08:10


Created	Duration	User	Repo	Result
2024/12/30 10:23	6h26m	fix candidate	upstream	OK (1) job log
2024/12/08 01:47	3h33m	bisect fix	linux-5.15.y	OK (0) job log log
2024/10/24 17:56	1h36m	bisect fix	linux-5.15.y	OK (0) job log log
2024/09/22 03:55	1h09m	bisect fix	linux-5.15.y	OK (0) job log log
2024/08/18 20:47	3h14m	bisect fix	linux-5.15.y	OK (0) job log log
2024/07/07 03:43	1h02m	bisect fix	linux-5.15.y	OK (0) job log log
2024/05/28 08:51	1h06m	bisect fix	linux-5.15.y	OK (0) job log log
2024/04/24 03:09	2h09m	bisect fix	linux-5.15.y	OK (0) job log log
2024/03/24 05:06	1h05m	bisect fix	linux-5.15.y	OK (0) job log log
2024/02/23 00:12	1h02m	bisect fix	linux-5.15.y	OK (0) job log log
2024/01/14 01:22	1h15m	bisect fix	linux-5.15.y	OK (0) job log log
2023/12/12 20:03	1h10m	bisect fix	linux-5.15.y	OK (0) job log log
2023/11/12 12:22	1h06m	bisect fix	linux-5.15.y	OK (0) job log log
2023/10/10 21:53	2h30m	bisect fix	linux-5.15.y	OK (0) job log log

REISERFS (device loop0): using 3.5.x disk format REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ================================================================== BUG: KASAN: out-of-bounds in leaf_insert_into_buf+0x327/0x9a0 fs/reiserfs/lbalance.c:942 Read of size 372 at addr ffff88804a07ce8c by task syz-executor406/3486 CPU: 1 PID: 3486 Comm: syz-executor406 Not tainted 5.15.127-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189 memmove+0x25/0x60 mm/kasan/shadow.c:54 leaf_insert_into_buf+0x327/0x9a0 fs/reiserfs/lbalance.c:942 leaf_item_bottle fs/reiserfs/lbalance.c:508 [inline] leaf_copy_items fs/reiserfs/lbalance.c:617 [inline] leaf_move_items+0x1bc1/0x28a0 fs/reiserfs/lbalance.c:726 balance_leaf_new_nodes_paste_whole fs/reiserfs/do_balan.c:1162 [inline] balance_leaf_new_nodes_paste fs/reiserfs/do_balan.c:1215 [inline] balance_leaf_new_nodes fs/reiserfs/do_balan.c:1246 [inline] balance_leaf+0x6515/0x12510 fs/reiserfs/do_balan.c:1450 do_balance+0x309/0x8f0 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x73b/0x880 fs/reiserfs/stree.c:2159 reiserfs_get_block+0x226a/0x5390 fs/reiserfs/inode.c:1077 __block_write_begin_int+0x60b/0x1650 fs/buffer.c:2012 reiserfs_write_begin+0x346/0x810 fs/reiserfs/inode.c:2790 generic_cont_expand_simple+0x144/0x230 fs/buffer.c:2362 reiserfs_setattr+0x3ff/0xf90 fs/reiserfs/inode.c:3319 notify_change+0xd4d/0x1000 fs/attr.c:488 do_truncate+0x21c/0x300 fs/open.c:65 do_sys_ftruncate+0x2eb/0x390 fs/open.c:193 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+0x61/0xcb RIP: 0033:0x7efea1f57679 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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:00007fff2e29a408 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007fff2e29a5d8 RCX: 00007efea1f57679 RDX: 00007efea1f57679 RSI: 0000000002007ffb RDI: 0000000000000005 RBP: 00007efea1fcb610 R08: 00007fff2e29a5d8 R09: 00007fff2e29a5d8 R10: 00007fff2e29a5d8 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2e29a5c8 R14: 0000000000000001 R15: 0000000000000001 </TASK> The buggy address belongs to the page: page:ffffea0001281f00 refcount:1 mapcount:1 mapping:0000000000000000 index:0x7fffffffd pfn:0x4a07c memcg:ffff888011e34000 anon flags: 0xfff00000080014(uptodate|lru|swapbacked|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000080014 ffffea000129fc08 ffffea0001281ec8 ffff8880196bd001 raw: 00000007fffffffd 0000000000000000 0000000100000000 ffff888011e34000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Movable, gfp_mask 0x1100cca(GFP_HIGHUSER_MOVABLE), pid 2949, ts 53274993701, free_ts 12298732275 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5421 alloc_pages_vma+0x39a/0x800 mm/mempolicy.c:2146 wp_page_copy+0x24e/0x2070 mm/memory.c:3026 handle_pte_fault mm/memory.c:4639 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x2a3d/0x5950 mm/memory.c:4854 do_user_addr_fault arch/x86/mm/fault.c:1397 [inline] handle_page_fault arch/x86/mm/fault.c:1485 [inline] exc_page_fault+0x271/0x740 arch/x86/mm/fault.c:1541 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 free_contig_range+0x95/0xf0 mm/page_alloc.c:9340 destroy_args+0xfe/0x97f mm/debug_vm_pgtable.c:1018 debug_vm_pgtable+0x40d/0x462 mm/debug_vm_pgtable.c:1331 do_one_initcall+0x22b/0x7a0 init/main.c:1295 do_initcall_level+0x157/0x207 init/main.c:1368 do_initcalls+0x49/0x86 init/main.c:1384 kernel_init_freeable+0x43c/0x5c5 init/main.c:1608 kernel_init+0x19/0x290 init/main.c:1499 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Memory state around the buggy address: ffff88804a07cd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88804a07ce00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88804a07ce80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff88804a07cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88804a07cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/08/21 01:29	linux-5.15.y	f6f7927ac664	d216d8a0	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan	KASAN: out-of-bounds Read in leaf_insert_into_buf

Crashes (1):

Assets (help?)