Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH] seccomp: fix UAF in user-trap code | 3 (3) | 2019/01/15 17:42 |
KASAN: use-after-free Read in seccomp_notify_release | 1 (2) | 2019/01/12 16:34 |
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Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH] seccomp: fix UAF in user-trap code | 3 (3) | 2019/01/15 17:42 |
KASAN: use-after-free Read in seccomp_notify_release | 1 (2) | 2019/01/12 16:34 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: use-after-free Read in seccomp_notify_release (2) kernel | C | done | 9 | 2031d | 2031d | 12/28 | fixed on 2019/05/27 12:48 |
audit: type=1326 audit(1547242557.061:2115): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=9988 comm="syz-executor667" exe="/root/syz-executor667976370" sig=31 arch=c000003e syscall=202 compat=0 ip=0x447c09 code=0x0 audit: type=1326 audit(1547242557.061:2116): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=9980 comm="syz-executor667" exe="/root/syz-executor667976370" sig=31 arch=c000003e syscall=3 compat=0 ip=0x4069e1 code=0x0 ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x3556/0x4a30 kernel/locking/lockdep.c:3215 Read of size 8 at addr ffff88808c5c8a80 by task syz-executor667/9991 CPU: 0 PID: 9991 Comm: syz-executor667 Not tainted 5.0.0-rc1+ #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187 kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317 __asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:135 __lock_acquire+0x3556/0x4a30 kernel/locking/lockdep.c:3215 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seccomp_notify_release+0x54/0x270 kernel/seccomp.c:979 __fput+0x3c5/0xb10 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x1f4/0x2b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x32a/0x3b0 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x696/0x800 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4069e1 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 d4 18 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe443110b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00000000004069e1 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000003 RBP: 0000000000000002 R08: 0000000000000001 R09: 00000000bb1414ac R10: 00007ffe443110d0 R11: 0000000000000293 R12: 00000000006e39fc R13: 00000000006e39f0 R14: 00000000000003e8 R15: 000000000000002d Allocated by task 10001: save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] __kasan_kmalloc mm/kasan/common.c:496 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:469 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:504 kmem_cache_alloc_trace+0x151/0x760 mm/slab.c:3609 kmalloc include/linux/slab.h:545 [inline] kzalloc include/linux/slab.h:740 [inline] seccomp_prepare_filter kernel/seccomp.c:451 [inline] seccomp_prepare_user_filter kernel/seccomp.c:491 [inline] seccomp_set_mode_filter kernel/seccomp.c:1257 [inline] do_seccomp+0x941/0x2cc0 kernel/seccomp.c:1370 __do_sys_seccomp kernel/seccomp.c:1389 [inline] __se_sys_seccomp kernel/seccomp.c:1386 [inline] __x64_sys_seccomp+0x73/0xb0 kernel/seccomp.c:1386 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 10001: save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/common.c:458 kasan_slab_free+0xe/0x10 mm/kasan/common.c:466 __cache_free mm/slab.c:3487 [inline] kfree+0xcf/0x230 mm/slab.c:3806 seccomp_filter_free kernel/seccomp.c:565 [inline] seccomp_filter_free kernel/seccomp.c:561 [inline] seccomp_set_mode_filter kernel/seccomp.c:1311 [inline] do_seccomp+0xda3/0x2cc0 kernel/seccomp.c:1370 __do_sys_seccomp kernel/seccomp.c:1389 [inline] __se_sys_seccomp kernel/seccomp.c:1386 [inline] __x64_sys_seccomp+0x73/0xb0 kernel/seccomp.c:1386 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff88808c5c8a00 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 128 bytes inside of 192-byte region [ffff88808c5c8a00, ffff88808c5c8ac0) The buggy address belongs to the page: page:ffffea0002317200 count:1 mapcount:0 mapping:ffff88812c3f0040 index:0x0 flags: 0x1fffc0000000200(slab) raw: 01fffc0000000200 ffffea0002276e08 ffff88812c3f1148 ffff88812c3f0040 raw: 0000000000000000 ffff88808c5c8000 0000000100000010 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88808c5c8980: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ffff88808c5c8a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88808c5c8a80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff88808c5c8b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88808c5c8b80: 00 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/01/11 21:38 | upstream | de6629eb262e | c3f3344c | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2019/01/11 16:24 | upstream | 1bdbe2274920 | c3f3344c | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2019/01/11 13:13 | upstream | 1bdbe2274920 | 80dde172 | .config | console log | report | syz | C | ci-upstream-kasan-gce-selinux-root | |||
2019/01/11 12:01 | upstream | 1bdbe2274920 | 80dde172 | .config | console log | report | syz | C | ci-upstream-kasan-gce-smack-root | |||
2019/01/11 11:37 | upstream | 1bdbe2274920 | 80dde172 | .config | console log | report | syz | C | ci-upstream-kasan-gce-386 | |||
2019/01/11 11:56 | linux-next | b808822a75a3 | 80dde172 | .config | console log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | |||
2019/03/01 09:34 | upstream | 7d762d69145a | 8a4b3a6b | .config | console log | report | ci-upstream-kasan-gce-smack-root | |||||
2019/02/20 01:13 | upstream | 40e196a906d9 | 4df543c9 | .config | console log | report | ci-upstream-kasan-gce | |||||
2019/02/19 23:45 | upstream | b5372fe5dc84 | 4df543c9 | .config | console log | report | ci-upstream-kasan-gce | |||||
2019/02/19 01:09 | upstream | a3b22b9f11d9 | 59f36113 | .config | console log | report | ci-upstream-kasan-gce | |||||
2019/02/17 18:08 | upstream | 8d33316d5205 | 3e98cc30 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2019/02/17 14:45 | upstream | 64c0133eb88a | 3e98cc30 | .config | console log | report | ci-upstream-kasan-gce-smack-root | |||||
2019/02/16 21:56 | upstream | 5ded5871030e | f42dee6d | .config | console log | report | ci-upstream-kasan-gce | |||||
2019/02/16 20:12 | upstream | 5ded5871030e | f42dee6d | .config | console log | report | ci-upstream-kasan-gce | |||||
2019/02/15 22:41 | upstream | 5ded5871030e | f42dee6d | .config | console log | report | ci-upstream-kasan-gce-smack-root | |||||
2019/02/15 19:09 | upstream | cb5b020a8d38 | f6f233c0 | .config | console log | report | ci-upstream-kasan-gce | |||||
2019/02/15 18:14 | upstream | cb5b020a8d38 | f6f233c0 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2019/02/12 15:53 | upstream | aa0c38cf39de | 6ecc6d0f | .config | console log | report | ci-upstream-kasan-gce | |||||
2019/02/01 17:45 | upstream | 5b4746a03199 | 0c07abcf | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2019/02/25 09:33 | upstream | 5908e6b738e3 | a70141bf | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2019/02/22 11:15 | upstream | 8a61716ff2ab | 6a5fcca4 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2019/02/18 19:10 | upstream | 301e361072e5 | 59f36113 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2019/02/17 19:34 | upstream | 8d33316d5205 | 3e98cc30 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2019/02/14 12:53 | upstream | 1f947a7a011f | 6a46f448 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2019/02/13 02:18 | upstream | 57902dc0670c | 1eedba36 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2019/01/11 11:04 | upstream | 1bdbe2274920 | 80dde172 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2019/02/17 07:58 | linux-next | 7a92eb7cc1dc | f42dee6d | .config | console log | report | ci-upstream-linux-next-kasan-gce-root |