KASAN: use-after-free Read in release

Kernel	Title	Repro	Cause bisect	Count	Last	Reported	Patched	Status
upstream	KASAN: use-after-free Read in release_metapage jfs	C	error	306	49d	484d	0/26	upstream: reported C repro on 2023/01/02 10:00
linux-4.14	KASAN: use-after-free Read in release_metapage			1	539d	539d	0/1	auto-obsoleted due to no activity on 2023/03/09 00:53
linux-5.15	KASAN: use-after-free Read in release_metapage			1	201d	201d	0/3	auto-obsoleted due to no activity on 2024/01/20 09:39

loop1: detected capacity change from 0 to 32768 ================================================================== BUG: KASAN: use-after-free in drop_metapage fs/jfs/jfs_metapage.c:223 [inline] BUG: KASAN: use-after-free in release_metapage+0x60a/0x9b0 fs/jfs/jfs_metapage.c:757 Read of size 8 at addr ffff8880a583c6f0 by task syz-executor.1/30402 CPU: 1 PID: 30402 Comm: syz-executor.1 Not tainted 6.1.54-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 drop_metapage fs/jfs/jfs_metapage.c:223 [inline] release_metapage+0x60a/0x9b0 fs/jfs/jfs_metapage.c:757 write_metapage fs/jfs/jfs_metapage.h:75 [inline] flush_metapage fs/jfs/jfs_metapage.h:81 [inline] ea_write+0x69f/0xe50 fs/jfs/xattr.c:280 ea_put fs/jfs/xattr.c:610 [inline] __jfs_setxattr+0xa35/0x11d0 fs/jfs/xattr.c:783 __jfs_xattr_set+0xf5/0x180 fs/jfs/xattr.c:917 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216 vfs_setxattr+0x21d/0x420 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x250/0x2b0 fs/xattr.c:617 path_setxattr+0x1bc/0x2a0 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:648 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: 0033:0x7f4b38a7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4b375fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f4b38b9bf80 RCX: 00007f4b38a7cae9 RDX: 00000000200003c0 RSI: 0000000020000400 RDI: 0000000020000340 RBP: 00007f4b38ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000e407 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4b38b9bf80 R15: 00007ffc77267ed8 </TASK> Allocated by task 30402: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x50/0x370 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422 mempool_alloc+0x190/0x580 mm/mempool.c:392 alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] __get_metapage+0x570/0x10e0 fs/jfs/jfs_metapage.c:651 ea_write+0x633/0xe50 fs/jfs/xattr.c:256 ea_put fs/jfs/xattr.c:610 [inline] __jfs_setxattr+0xa35/0x11d0 fs/jfs/xattr.c:783 __jfs_xattr_set+0xf5/0x180 fs/jfs/xattr.c:917 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216 vfs_setxattr+0x21d/0x420 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x250/0x2b0 fs/xattr.c:617 path_setxattr+0x1bc/0x2a0 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:648 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 Freed by task 110: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] kmem_cache_free+0x292/0x510 mm/slub.c:3683 free_metapage fs/jfs/jfs_metapage.c:191 [inline] metapage_release_folio+0x5c8/0x730 fs/jfs/jfs_metapage.c:551 shrink_folio_list+0x2872/0x8ee0 mm/vmscan.c:1996 evict_folios+0xb42/0x2810 mm/vmscan.c:5039 lru_gen_shrink_lruvec mm/vmscan.c:5223 [inline] shrink_lruvec+0xdbf/0x4650 mm/vmscan.c:5918 The buggy address belongs to the object at ffff8880a583c6c8 which belongs to the cache jfs_mp of size 184 The buggy address is located 40 bytes inside of 184-byte region [ffff8880a583c6c8, ffff8880a583c780) The buggy address belongs to the physical page: page:ffffea0002960f00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xa583c flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea0002ad4c00 dead00000000000a ffff888147a9b500 raw: 0000000000000000 0000000080100010 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 0x192800(GFP_NOWAIT|__GFP_NOWARN|__GFP_NORETRY|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 7315, tgid 7297 (syz-executor.5), ts 1580407317125, free_ts 1577396105059 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 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xa71/0x1080 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x1a5/0x2d0 mm/slub.c:3422 mempool_alloc+0x190/0x580 mm/mempool.c:392 alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] __get_metapage+0x570/0x10e0 fs/jfs/jfs_metapage.c:651 ea_write+0x633/0xe50 fs/jfs/xattr.c:256 ea_put fs/jfs/xattr.c:610 [inline] __jfs_setxattr+0xa35/0x11d0 fs/jfs/xattr.c:783 __jfs_xattr_set+0xf5/0x180 fs/jfs/xattr.c:917 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216 vfs_setxattr+0x21d/0x420 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x250/0x2b0 fs/xattr.c:617 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+0x98/0x570 mm/page_alloc.c:3484 __vunmap+0x834/0x9a0 mm/vmalloc.c:2717 free_work+0x57/0x80 mm/vmalloc.c:97 process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2292 worker_thread+0xa5f/0x1210 kernel/workqueue.c:2439 kthread+0x26e/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Memory state around the buggy address: ffff8880a583c580: fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb ffff8880a583c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880a583c680: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb ^ ffff8880a583c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880a583c780: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ==================================================================

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/09/20 12:54	linux-6.1.y	a356197db198	0b6a67ac	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	KASAN: use-after-free Read in release_metapage

Crashes (1):

Assets (help?)