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[syzbot] [bluetooth?] KASAN: slab-use-after-free Write in sco_chan_del | 1 (4) | 2023/08/18 04:39 |
[syzbot] Monthly bluetooth report (May 2023) | 0 (1) | 2023/05/30 20:52 |
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[syzbot] [bluetooth?] KASAN: slab-use-after-free Write in sco_chan_del | 1 (4) | 2023/08/18 04:39 |
[syzbot] Monthly bluetooth report (May 2023) | 0 (1) | 2023/05/30 20:52 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2023/08/19 13:33 | 26m | pav@iki.fi | patch | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git f0835e7404b7f6fd825fc1ad7a174253a54234cf | OK log |
2023/08/19 01:46 | 23m | hdanton@sina.com | patch | https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 47762f086974 | OK log |
2023/08/18 19:24 | 21m | pav@iki.fi | patch | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git f0835e7404b7f6fd825fc1ad7a174253a54234cf | OK log |
2023/08/18 11:48 | 23m | hdanton@sina.com | patch | https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 47762f086974 | report log |
================================================================== BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: slab-use-after-free in atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:1375 [inline] BUG: KASAN: slab-use-after-free in hci_conn_drop include/net/bluetooth/hci_core.h:1497 [inline] BUG: KASAN: slab-use-after-free in sco_chan_del+0x102/0x4f0 net/bluetooth/sco.c:171 Write of size 4 at addr ffff88807cee0010 by task syz-executor360/8962 CPU: 1 PID: 8962 Comm: syz-executor360 Not tainted 6.5.0-rc6-next-20230817-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+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc4/0x620 mm/kasan/report.c:475 kasan_report+0xda/0x110 mm/kasan/report.c:588 check_region_inline mm/kasan/generic.c:181 [inline] kasan_check_range+0xef/0x190 mm/kasan/generic.c:187 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:1375 [inline] hci_conn_drop include/net/bluetooth/hci_core.h:1497 [inline] sco_chan_del+0x102/0x4f0 net/bluetooth/sco.c:171 __sco_sock_close+0xf2/0x690 net/bluetooth/sco.c:454 sco_sock_close net/bluetooth/sco.c:469 [inline] sco_sock_release+0x6f/0x2c0 net/bluetooth/sco.c:1246 __sock_release+0xae/0x260 net/socket.c:659 sock_close+0x1c/0x20 net/socket.c:1401 __fput+0x3f7/0xac0 fs/file_table.c:384 task_work_run+0x14d/0x240 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa99/0x2a20 kernel/exit.c:874 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 get_signal+0x23d1/0x27b0 kernel/signal.c:2892 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:297 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff68c148bb9 Code: Unable to access opcode bytes at 0x7ff68c148b8f. RSP: 002b:00007ffe45e76968 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007ff68c148bb9 RDX: 0000000000000008 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 0000000000000003 R08: 00007ffe45e769a0 R09: 00007ffe45e769a0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000555556df1370 R13: 0000000000000016 R14: 0000000000000251 R15: 431bde82d7b634db </TASK> Allocated by task 8762: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:721 [inline] hci_conn_add+0xc2/0x1770 net/bluetooth/hci_conn.c:952 hci_connect_sco+0x3ac/0xf80 net/bluetooth/hci_conn.c:1671 sco_connect net/bluetooth/sco.c:266 [inline] sco_sock_connect+0x2c7/0xa50 net/bluetooth/sco.c:591 __sys_connect_file+0x15b/0x1a0 net/socket.c:2032 __sys_connect+0x145/0x170 net/socket.c:2049 __do_sys_connect net/socket.c:2059 [inline] __se_sys_connect net/socket.c:2056 [inline] __x64_sys_connect+0x72/0xb0 net/socket.c:2056 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 5061: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x15e/0x1b0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826 slab_free mm/slub.c:3809 [inline] __kmem_cache_free+0xb8/0x2f0 mm/slub.c:3822 device_release+0xa1/0x240 drivers/base/core.c:2484 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1f7/0x5b0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3731 hci_conn_unlink+0x60a/0x840 net/bluetooth/hci_conn.c:1071 hci_conn_del+0x59/0xd10 net/bluetooth/hci_conn.c:1097 hci_abort_conn_sync+0x7fc/0xb70 net/bluetooth/hci_sync.c:5417 abort_conn_sync+0x18e/0x3a0 net/bluetooth/hci_conn.c:2869 hci_cmd_sync_work+0x1a4/0x3c0 net/bluetooth/hci_sync.c:306 process_one_work+0x887/0x15d0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8bb/0x1290 kernel/workqueue.c:2784 kthread+0x33a/0x430 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492 insert_work+0x38/0x230 kernel/workqueue.c:1647 __queue_work+0x5d2/0x1060 kernel/workqueue.c:1799 __queue_delayed_work+0x1bf/0x260 kernel/workqueue.c:1950 queue_delayed_work_on+0x106/0x130 kernel/workqueue.c:1986 queue_delayed_work include/linux/workqueue.h:569 [inline] hci_conn_drop include/net/bluetooth/hci_core.h:1523 [inline] hci_conn_drop include/net/bluetooth/hci_core.h:1493 [inline] sco_chan_del+0x1f8/0x4f0 net/bluetooth/sco.c:171 __sco_sock_close+0xf2/0x690 net/bluetooth/sco.c:454 sco_sock_close net/bluetooth/sco.c:469 [inline] sco_sock_release+0x6f/0x2c0 net/bluetooth/sco.c:1246 __sock_release+0xae/0x260 net/socket.c:659 sock_close+0x1c/0x20 net/socket.c:1401 __fput+0x3f7/0xac0 fs/file_table.c:384 task_work_run+0x14d/0x240 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa99/0x2a20 kernel/exit.c:874 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 get_signal+0x23d1/0x27b0 kernel/signal.c:2892 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:297 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88807cee0000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 16 bytes inside of freed 4096-byte region [ffff88807cee0000, ffff88807cee1000) The buggy address belongs to the physical page: page:ffffea0001f3b800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7cee0 head:ffffea0001f3b800 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000010200 ffff888012c42140 ffffea00009e7000 dead000000000002 raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5046, tgid 5046 (syz-executor360), ts 144073960140, free_ts 83497589835 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1550 prep_new_page mm/page_alloc.c:1557 [inline] get_page_from_freelist+0x10d7/0x31b0 mm/page_alloc.c:3233 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4489 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298 alloc_slab_page mm/slub.c:1870 [inline] allocate_slab+0x24e/0x380 mm/slub.c:2017 new_slab mm/slub.c:2070 [inline] ___slab_alloc+0x8bc/0x1570 mm/slub.c:3223 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322 __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1003 [inline] __kmalloc+0x4f/0x100 mm/slab_common.c:1017 kmalloc include/linux/slab.h:604 [inline] tomoyo_realpath_from_path+0xb9/0x710 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x271/0x450 security/tomoyo/file.c:822 security_inode_getattr+0xf1/0x150 security/security.c:2153 vfs_getattr fs/stat.c:206 [inline] vfs_statx+0x180/0x430 fs/stat.c:281 vfs_fstatat+0x90/0xb0 fs/stat.c:315 __do_sys_newfstatat+0x98/0x110 fs/stat.c:485 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1150 [inline] free_unref_page_prepare+0x479/0xa50 mm/page_alloc.c:2362 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2455 __unfreeze_partials+0x21d/0x240 mm/slub.c:2655 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3523 __alloc_skb+0x287/0x330 net/core/skbuff.c:634 alloc_skb_fclone include/linux/skbuff.h:1336 [inline] tcp_stream_alloc_skb+0x34/0x560 net/ipv4/tcp.c:869 tcp_sendmsg_locked+0xea5/0x3430 net/ipv4/tcp.c:1150 tcp_sendmsg+0x2e/0x40 net/ipv4/tcp.c:1336 inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:840 sock_sendmsg_nosec net/socket.c:730 [inline] sock_sendmsg+0xd9/0x180 net/socket.c:753 sock_write_iter+0x29b/0x3d0 net/socket.c:1140 call_write_iter include/linux/fs.h:1983 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x650/0xe40 fs/read_write.c:584 ksys_write+0x1f0/0x250 fs/read_write.c:637 Memory state around the buggy address: ffff88807cedff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88807cedff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88807cee0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88807cee0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88807cee0100: 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/08/17 12:55 | linux-next | 47762f086974 | 74b106b6 | .config | strace log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/05/22 09:45 | upstream | 44c026a73be8 | 4bce1a3e | .config | console log | report | info | ci-qemu-upstream | KASAN: slab-use-after-free Write in sco_chan_del | |||
2023/09/02 01:57 | net | ae074e2b2fd4 | 696ea0d2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-this-kasan-gce | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/23 20:45 | net-next | e3b3a87967ce | 4d7ae7ab | .config | console log | report | info | ci-upstream-net-kasan-gce | KASAN: slab-use-after-free Write in sco_chan_del | |||
2023/05/09 01:31 | net-next | ed23734c23d2 | f4168103 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-kasan-gce | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/21 13:49 | linux-next | 47d9bb711707 | d216d8a0 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | |||
2023/08/21 07:04 | linux-next | 7271b2a53042 | d216d8a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/20 21:22 | linux-next | 7271b2a53042 | d216d8a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/20 21:00 | linux-next | 7271b2a53042 | d216d8a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/20 00:46 | linux-next | 7271b2a53042 | d216d8a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/19 15:46 | linux-next | 7271b2a53042 | d216d8a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/19 09:01 | linux-next | 7271b2a53042 | d216d8a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/19 08:48 | linux-next | 7271b2a53042 | d216d8a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | ||
2023/08/18 01:39 | linux-next | 47762f086974 | 74b106b6 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | |||
2023/08/17 10:38 | linux-next | 47762f086974 | 74b106b6 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | |||
2023/08/17 07:48 | linux-next | 47762f086974 | 74b106b6 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Write in sco_chan_del | |||
2023/07/08 18:20 | net | 2aaa8a15de73 | 668cb1fa | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-this-kasan-gce | KASAN: slab-use-after-free Read in sco_chan_del | ||
2023/09/22 17:47 | net-next | 5a1b322cb0b7 | 0b6a67ac | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-kasan-gce | KASAN: slab-use-after-free Read in sco_chan_del | ||
2023/09/26 12:32 | linux-next | 4ae73bba62a3 | 0b6a67ac | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Read in sco_chan_del |