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| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH 5.15 000/177] 5.15.11-rc1 review | 183 (183) | 2021/12/21 23:14 |
| [PATCH] io-wq: check for wq exit after adding new worker task_work | 2 (2) | 2021/12/10 18:38 |
| [syzbot] KASAN: use-after-free Write in io_queue_worker_create | 3 (7) | 2021/12/10 16:15 |
| Created | Duration | User | Patch | Repo | Result |
|---|---|---|---|---|---|
| 2021/12/10 15:33 | 18m | axboe@kernel.dk | git://git.kernel.dk/linux-block io_uring-5.16 | OK | |
| 2021/12/10 05:26 | 17m | axboe@kernel.dk | git://git.kernel.dk/linux-block io_uring-5.16 | report log |
================================================================== BUG: KASAN: use-after-free in instrument_atomic_write include/linux/instrumented.h:86 [inline] BUG: KASAN: use-after-free in io_queue_worker_create+0x1cc/0x320 include/asm-generic/bitops/instrumented-lock.h:25 Write of size 8 at addr ffff88807b52f0d8 by task kworker/0:3/3267 CPU: 0 PID: 3267 Comm: kworker/0:3 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events io_workqueue_create Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106 print_address_description+0x65/0x380 mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report+0x19a/0x1f0 mm/kasan/report.c:450 kasan_check_range+0x2b5/0x2f0 mm/kasan/generic.c:189 instrument_atomic_write include/linux/instrumented.h:86 [inline] io_queue_worker_create+0x1cc/0x320 include/asm-generic/bitops/instrumented-lock.h:25 io_workqueue_create+0x75/0xb0 fs/io-wq.c:780 process_one_work+0x853/0x1140 kernel/workqueue.c:2298 worker_thread+0xac1/0x1320 kernel/workqueue.c:2445 kthread+0x468/0x490 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 </TASK> Allocated by task 3621: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xdc/0x110 mm/kasan/common.c:513 kasan_kmalloc include/linux/kasan.h:269 [inline] kmem_cache_alloc_node_trace+0x26f/0x370 mm/slub.c:3289 kmalloc_node include/linux/slab.h:608 [inline] kzalloc_node include/linux/slab.h:735 [inline] create_io_worker+0xef/0x630 fs/io-wq.c:792 create_worker_cb+0x16e/0x340 fs/io-wq.c:329 task_work_run+0x146/0x1c0 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:214 [inline] handle_signal_work kernel/entry/common.c:146 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x180/0x220 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300 do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 3621: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x10d/0x150 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1749 slab_free mm/slub.c:3513 [inline] kfree+0xe1/0x330 mm/slub.c:4561 create_worker_cont+0x4ca/0x5a0 fs/io-wq.c:766 task_work_run+0x146/0x1c0 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:214 [inline] handle_signal_work kernel/entry/common.c:146 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x180/0x220 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300 do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae Last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38 __kasan_record_aux_stack+0xfa/0x130 mm/kasan/generic.c:348 task_work_add+0x2f/0x1b0 kernel/task_work.c:38 io_queue_worker_create+0x1b4/0x320 fs/io-wq.c:362 io_workqueue_create+0x75/0xb0 fs/io-wq.c:780 process_one_work+0x853/0x1140 kernel/workqueue.c:2298 worker_thread+0xac1/0x1320 kernel/workqueue.c:2445 kthread+0x468/0x490 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 Second to last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38 __kasan_record_aux_stack+0xfa/0x130 mm/kasan/generic.c:348 insert_work+0x54/0x400 kernel/workqueue.c:1354 __queue_work+0x928/0xc60 kernel/workqueue.c:1520 queue_work_on+0x12b/0x220 kernel/workqueue.c:1547 queue_work include/linux/workqueue.h:502 [inline] schedule_work include/linux/workqueue.h:563 [inline] create_worker_cont+0x442/0x5a0 fs/io-wq.c:772 task_work_run+0x146/0x1c0 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:214 [inline] handle_signal_work kernel/entry/common.c:146 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x180/0x220 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300 do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff88807b52f000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 216 bytes inside of 512-byte region [ffff88807b52f000, ffff88807b52f200) The buggy address belongs to the page: page:ffffea0001ed4b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7b52c head:ffffea0001ed4b00 order:2 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888011441c80 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 3621, ts 51184877647, free_ts 17901522119 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0x729/0x9e0 mm/page_alloc.c:4149 __alloc_pages+0x255/0x580 mm/page_alloc.c:5369 __alloc_pages_node include/linux/gfp.h:570 [inline] alloc_slab_page mm/slub.c:1795 [inline] allocate_slab+0x89/0x4d0 mm/slub.c:1930 new_slab mm/slub.c:1993 [inline] ___slab_alloc+0x41e/0xc40 mm/slub.c:3022 __slab_alloc mm/slub.c:3109 [inline] slab_alloc_node mm/slub.c:3200 [inline] kmem_cache_alloc_node_trace+0x2ca/0x370 mm/slub.c:3284 kmalloc_node include/linux/slab.h:608 [inline] kzalloc_node include/linux/slab.h:735 [inline] create_io_worker+0xef/0x630 fs/io-wq.c:792 create_worker_cb+0x16e/0x340 fs/io-wq.c:329 task_work_run+0x146/0x1c0 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:214 [inline] handle_signal_work kernel/entry/common.c:146 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x180/0x220 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300 do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86 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+0xd1c/0xe00 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page+0x7d/0x580 mm/page_alloc.c:3388 free_slab mm/slub.c:2033 [inline] discard_slab mm/slub.c:2039 [inline] __unfreeze_partials+0x1ab/0x200 mm/slub.c:2527 put_cpu_partial+0x116/0x180 mm/slub.c:2603 do_slab_free mm/slub.c:3501 [inline] ___cache_free+0xe6/0x120 mm/slub.c:3520 qlist_free_all mm/kasan/quarantine.c:165 [inline] kasan_quarantine_reduce+0x151/0x1c0 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x2f/0xf0 mm/kasan/common.c:444 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] __kmalloc+0x1ed/0x380 mm/slub.c:4419 kmalloc include/linux/slab.h:595 [inline] tomoyo_realpath_from_path+0xd8/0x610 security/tomoyo/realpath.c:254 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x238/0x660 security/tomoyo/file.c:822 security_inode_getattr+0xc0/0x140 security/security.c:1334 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x168/0x3f0 fs/stat.c:225 vfs_fstatat fs/stat.c:243 [inline] __do_sys_newfstatat fs/stat.c:412 [inline] __se_sys_newfstatat+0xc8/0x760 fs/stat.c:406 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Memory state around the buggy address: ffff88807b52ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88807b52f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88807b52f080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88807b52f100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88807b52f180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021/12/10 10:14 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | syz | C | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | ||
| 2021/12/10 05:20 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | ||
| 2021/12/12 05:48 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/12 03:21 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/12 00:02 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 19:50 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 14:07 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 12:50 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 11:30 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 08:27 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 06:34 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 04:23 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 00:04 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 22:44 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 20:58 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 19:35 | upstream | c741e49150db | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 17:51 | upstream | c741e49150db | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 16:35 | upstream | c741e49150db | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 15:45 | upstream | c741e49150db | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 14:34 | upstream | c741e49150db | fc17c959 | .config | console log | report | info | ci-qemu-upstream | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 07:57 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 06:24 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 04:47 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 03:44 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 03:39 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 02:35 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 02:31 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 01:59 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 01:32 | upstream | ded746bfc943 | 4d4ce9bc | .config | console log | report | info | ci-qemu-upstream | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 00:54 | upstream | c741e49150db | b54aa474 | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 00:53 | upstream | c741e49150db | b54aa474 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 00:30 | upstream | c741e49150db | b54aa474 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 00:15 | upstream | c741e49150db | b54aa474 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 00:05 | upstream | c741e49150db | b54aa474 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 00:02 | upstream | c741e49150db | b54aa474 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/06 02:58 | upstream | 944207047ca4 | a617004c | .config | console log | report | info | ci-qemu-upstream | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/04 18:41 | upstream | bbef3c7a63d2 | a617004c | .config | console log | report | info | ci-qemu-upstream | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 17:32 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-qemu-upstream-386 | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 16:28 | upstream | 6f513529296f | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-386 | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 09:27 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-386 | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 21:37 | upstream | b8a98b6bf66a | 49ca1f59 | .config | console log | report | info | ci-upstream-kasan-gce-386 | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 03:31 | upstream | c741e49150db | 4d4ce9bc | .config | console log | report | info | ci-upstream-kasan-gce-386 | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/10 01:16 | upstream | ded746bfc943 | 4d4ce9bc | .config | console log | report | info | ci-qemu-upstream-386 | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/15 18:09 | linux-next | ea922272cbe5 | 572bcb40 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/15 05:21 | linux-next | ea922272cbe5 | f752fb53 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/14 21:50 | linux-next | ea922272cbe5 | d018dd31 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/14 10:04 | linux-next | ea922272cbe5 | 5d14b1ea | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/13 22:02 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/13 18:23 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/13 14:42 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/13 12:42 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/13 00:40 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/12 09:27 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/11 05:29 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Write in io_queue_worker_create | |||
| 2021/12/12 16:10 | linux-next | ea922272cbe5 | 49ca1f59 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KFENCE: use-after-free in io_queue_worker_create |