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random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) ================================================================== BUG: KASAN: slab-out-of-bounds in tgr192_final+0x538/0x560 crypto/tgr192.c:603 Write of size 8 at addr ffff8801af53de20 by task syz-executor142/4504 CPU: 1 PID: 4504 Comm: syz-executor142 Not tainted 4.17.0+ #92 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+0x1b9/0x294 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report.c:438 tgr192_final+0x538/0x560 crypto/tgr192.c:603 crypto_shash_final+0x104/0x260 crypto/shash.c:152 kdf_ctr security/keys/dh.c:186 [inline] keyctl_dh_compute_kdf security/keys/dh.c:217 [inline] __keyctl_dh_compute+0x1184/0x1bc0 security/keys/dh.c:389 keyctl_dh_compute+0xb9/0x100 security/keys/dh.c:425 __do_sys_keyctl security/keys/keyctl.c:1741 [inline] __se_sys_keyctl security/keys/keyctl.c:1637 [inline] __x64_sys_keyctl+0x12a/0x3b0 security/keys/keyctl.c:1637 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x440099 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 0f 83 6b 45 00 00 c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd04232a48 EFLAGS: 00000213 ORIG_RAX: 00000000000000fa RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440099 RDX: 0000000020000540 RSI: 0000000020000380 RDI: 0000000000000017 RBP: 00000000006ca018 R08: 00000000200005c0 R09: 00000000004002c8 R10: 0000000000000010 R11: 0000000000000213 R12: 00000000004019c0 R13: 0000000000401a50 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 4504: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x14e/0x760 mm/slab.c:3727 kmalloc include/linux/slab.h:518 [inline] keyctl_dh_compute_kdf security/keys/dh.c:211 [inline] __keyctl_dh_compute+0xfe9/0x1bc0 security/keys/dh.c:389 keyctl_dh_compute+0xb9/0x100 security/keys/dh.c:425 __do_sys_keyctl security/keys/keyctl.c:1741 [inline] __se_sys_keyctl security/keys/keyctl.c:1637 [inline] __x64_sys_keyctl+0x12a/0x3b0 security/keys/keyctl.c:1637 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 2846: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xd9/0x260 mm/slab.c:3813 single_release+0x8f/0xb0 fs/seq_file.c:609 __fput+0x353/0x890 fs/file_table.c:209 ____fput+0x15/0x20 fs/file_table.c:243 task_work_run+0x1e4/0x290 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:192 [inline] exit_to_usermode_loop+0x2bd/0x310 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline] syscall_return_slowpath arch/x86/entry/common.c:265 [inline] do_syscall_64+0x6ac/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8801af53de00 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes to the right of 32-byte region [ffff8801af53de00, ffff8801af53de20) The buggy address belongs to the page: page:ffffea0006bd4f40 count:1 mapcount:0 mapping:ffff8801da8001c0 index:0xffff8801af53dfc1 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea0006bf91c8 ffffea0006bdac88 ffff8801da8001c0 raw: ffff8801af53dfc1 ffff8801af53d000 000000010000003f 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801af53dd00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff8801af53dd80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc >ffff8801af53de00: 00 00 00 00 fc fc fc fc fb fb fb fb fc fc fc fc ^ ffff8801af53de80: 00 00 00 00 fc fc fc fc fb fb fb fb fc fc fc fc ffff8801af53df00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2018/06/09 18:42 | upstream | 7d3bf613e99a | 866118af | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2018/06/09 14:05 | upstream | 7d3bf613e99a | 866118af | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2018/06/09 00:32 | upstream | 410feb75de24 | 866118af | .config | console log | report | syz | C | ci-upstream-kasan-gce-386 | |||
2018/06/27 12:28 | upstream | 813835028e9a | 43e60f7e | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/27 01:39 | upstream | 813835028e9a | b0294c53 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/26 22:13 | upstream | 813835028e9a | b0294c53 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/26 21:11 | upstream | 813835028e9a | b0294c53 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/26 12:05 | upstream | 6f0d349d922b | 2064fc5c | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/26 03:06 | upstream | 6f0d349d922b | 2064fc5c | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/24 07:17 | upstream | 77072ca59fdd | 2064fc5c | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/20 14:42 | upstream | 81e97f01371f | 095ef806 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/19 15:23 | upstream | ba4dbdedd3ed | 732e4256 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/19 06:45 | upstream | ba4dbdedd3ed | 45c54f75 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/18 03:03 | upstream | ce397d215ccd | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/18 00:24 | upstream | ce397d215ccd | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/17 21:38 | upstream | ce397d215ccd | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/17 18:23 | upstream | ce397d215ccd | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/17 14:24 | upstream | ce397d215ccd | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/17 14:00 | upstream | ce397d215ccd | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/16 09:22 | upstream | 9215310cf13b | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/16 00:14 | upstream | 4c5e8fc62d6a | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/10 22:03 | upstream | 3ca24ce9ff76 | 866118af | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/06/27 16:29 | upstream | 813835028e9a | 43e60f7e | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/24 21:45 | upstream | 7daf201d7fe8 | 2064fc5c | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/20 15:27 | upstream | 81e97f01371f | 095ef806 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/19 15:53 | upstream | ba4dbdedd3ed | 732e4256 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/16 23:20 | upstream | 35773c93817c | 27c5f59f | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/11 19:49 | upstream | f0dc7f9c6dd9 | ae8bdb50 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/11 00:02 | upstream | 3ca24ce9ff76 | 866118af | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/10 04:27 | upstream | a16afaf7928b | 866118af | .config | console log | report | ci-upstream-kasan-gce-386 |