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[syzbot] KASAN: use-after-free Write in io_submit_one | 1 (4) | 2021/12/08 18:14 |
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[syzbot] KASAN: use-after-free Write in io_submit_one | 1 (4) | 2021/12/08 18:14 |
================================================================== BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: use-after-free in atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:167 [inline] BUG: KASAN: use-after-free in __refcount_sub_and_test include/linux/refcount.h:272 [inline] BUG: KASAN: use-after-free in __refcount_dec_and_test include/linux/refcount.h:315 [inline] BUG: KASAN: use-after-free in refcount_dec_and_test include/linux/refcount.h:333 [inline] BUG: KASAN: use-after-free in iocb_put fs/aio.c:1162 [inline] BUG: KASAN: use-after-free in io_submit_one+0x6fb/0x1c70 fs/aio.c:2000 Write of size 4 at addr ffff8880186720c8 by task syz-executor789/3602 CPU: 0 PID: 3602 Comm: syz-executor789 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:167 [inline] __refcount_sub_and_test include/linux/refcount.h:272 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] iocb_put fs/aio.c:1162 [inline] io_submit_one+0x6fb/0x1c70 fs/aio.c:2000 __do_sys_io_submit fs/aio.c:2056 [inline] __se_sys_io_submit fs/aio.c:2026 [inline] __x64_sys_io_submit+0x18c/0x330 fs/aio.c:2026 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f1ef62dde89 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffd6590348 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1ef62dde89 RDX: 0000000020000800 RSI: 0000000000000002 RDI: 00007f1ef6295000 RBP: 0000000000000000 R08: 00007fffd65904e8 R09: 00007fffd65904e8 R10: 00007fffd65904e8 R11: 0000000000000246 R12: 00007f1ef62a1710 R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 </TASK> Allocated by task 3602: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:3234 [inline] slab_alloc mm/slub.c:3242 [inline] kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247 aio_get_req fs/aio.c:1029 [inline] io_submit_one+0xfd/0x1c70 fs/aio.c:1993 __do_sys_io_submit fs/aio.c:2056 [inline] __se_sys_io_submit fs/aio.c:2026 [inline] __x64_sys_io_submit+0x18c/0x330 fs/aio.c:2026 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 3602: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free mm/kasan/common.c:328 [inline] __kasan_slab_free+0xff/0x130 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749 slab_free mm/slub.c:3513 [inline] kmem_cache_free+0xbd/0x5d0 mm/slub.c:3530 iocb_destroy fs/aio.c:1081 [inline] iocb_put fs/aio.c:1164 [inline] iocb_put fs/aio.c:1160 [inline] aio_complete_rw+0x474/0x8c0 fs/aio.c:1441 aio_rw_done fs/aio.c:1511 [inline] aio_read+0x30d/0x460 fs/aio.c:1538 __io_submit_one fs/aio.c:1948 [inline] io_submit_one+0xfbe/0x1c70 fs/aio.c:1997 __do_sys_io_submit fs/aio.c:2056 [inline] __se_sys_io_submit fs/aio.c:2026 [inline] __x64_sys_io_submit+0x18c/0x330 fs/aio.c:2026 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff888018672000 which belongs to the cache aio_kiocb of size 216 The buggy address is located 200 bytes inside of 216-byte region [ffff888018672000, ffff8880186720d8) The buggy address belongs to the page: page:ffffea0000619c80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x18672 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 dead000000000122 ffff88814663b8c0 raw: 0000000000000000 00000000800c000c 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3602, ts 67267165484, free_ts 16951029362 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191 alloc_slab_page mm/slub.c:1793 [inline] allocate_slab mm/slub.c:1930 [inline] new_slab+0x32d/0x4a0 mm/slub.c:1993 ___slab_alloc+0x918/0xfe0 mm/slub.c:3022 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109 slab_alloc_node mm/slub.c:3200 [inline] slab_alloc mm/slub.c:3242 [inline] kmem_cache_alloc+0x35c/0x3a0 mm/slub.c:3247 aio_get_req fs/aio.c:1029 [inline] io_submit_one+0xfd/0x1c70 fs/aio.c:1993 __do_sys_io_submit fs/aio.c:2056 [inline] __se_sys_io_submit fs/aio.c:2026 [inline] __x64_sys_io_submit+0x18c/0x330 fs/aio.c:2026 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1338 [inline] free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page+0x19/0x690 mm/page_alloc.c:3388 kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:380 apply_to_pte_range mm/memory.c:2518 [inline] apply_to_pmd_range mm/memory.c:2562 [inline] apply_to_pud_range mm/memory.c:2598 [inline] apply_to_p4d_range mm/memory.c:2634 [inline] __apply_to_page_range+0x694/0x1080 mm/memory.c:2668 kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:490 __purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1708 _vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2111 _vm_unmap_aliases mm/vmalloc.c:2085 [inline] vm_unmap_aliases+0x45/0x50 mm/vmalloc.c:2134 change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1743 change_page_attr_set arch/x86/mm/pat/set_memory.c:1793 [inline] set_memory_nx+0xb2/0x110 arch/x86/mm/pat/set_memory.c:1941 free_init_pages+0x73/0xc0 arch/x86/mm/init.c:894 kernel_init+0x2e/0x1d0 init/main.c:1508 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Memory state around the buggy address: ffff888018671f80: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc ffff888018672000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888018672080: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc ^ ffff888018672100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888018672180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/12/11 15:24 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | syz | C | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_submit_one | ||
2021/12/07 18:48 | linux-next | 04fe99a8d936 | 0230ba3e | .config | console log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_submit_one | ||
2021/11/24 08:49 | upstream | 5d9f4cf36721 | 545ab074 | .config | console log | report | info | ci-qemu-upstream | KASAN: use-after-free Write in io_submit_one | |||
2021/11/05 08:51 | upstream | d4439a1189f9 | 4c1be0be | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_submit_one | |||
2021/11/03 04:44 | upstream | cc0356d6a02e | 17f3edd2 | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_submit_one | |||
2021/11/02 00:10 | upstream | e66435936756 | 098b5d53 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_submit_one | |||
2021/11/02 02:24 | upstream | e66435936756 | 098b5d53 | .config | console log | report | info | ci-qemu-upstream-386 | KASAN: use-after-free Write in io_submit_one | |||
2021/11/02 02:01 | upstream | e66435936756 | 098b5d53 | .config | console log | report | info | ci-qemu-upstream-386 | KASAN: use-after-free Write in io_submit_one | |||
2021/11/01 23:19 | upstream | e66435936756 | 098b5d53 | .config | console log | report | info | ci-qemu-upstream-386 | KASAN: use-after-free Write in io_submit_one | |||
2021/11/01 22:59 | upstream | e66435936756 | 098b5d53 | .config | console log | report | info | ci-qemu-upstream-386 | KASAN: use-after-free Write in io_submit_one | |||
2021/12/07 15:47 | linux-next | 04fe99a8d936 | 0230ba3e | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_submit_one |