Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: slab-out-of-bounds Read in vcs_scr_readw serial | C | done | done | 16 | 1805d | 1805d | 15/28 | fixed on 2020/01/08 01:06 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: slab-out-of-bounds Read in vcs_scr_readw serial | C | done | done | 16 | 1805d | 1805d | 15/28 | fixed on 2020/01/08 01:06 |
audit: type=1400 audit(1575572344.161:36): avc: denied { map } for pid=7734 comm="syz-executor428" path="/root/syz-executor428105635" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 ================================================================== BUG: KASAN: slab-out-of-bounds in vcs_scr_readw+0xc2/0xd0 drivers/tty/vt/vt.c:4618 Read of size 2 at addr ffff8880a540d440 by task syz-executor428/7734 CPU: 0 PID: 7734 Comm: syz-executor428 Not tainted 4.19.88-syzkaller #0 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+0x197/0x210 lib/dump_stack.c:118 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report mm/kasan/report.c:412 [inline] kasan_report.cold+0x8c/0x2ba mm/kasan/report.c:396 __asan_report_load2_noabort+0x14/0x20 mm/kasan/report.c:431 vcs_scr_readw+0xc2/0xd0 drivers/tty/vt/vt.c:4618 vcs_write+0x646/0xcf0 drivers/tty/vt/vc_screen.c:526 __vfs_write+0x114/0x810 fs/read_write.c:485 __kernel_write+0x110/0x390 fs/read_write.c:506 write_pipe_buf+0x15d/0x1f0 fs/splice.c:798 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x391/0x7d0 fs/splice.c:627 splice_from_pipe+0x108/0x170 fs/splice.c:662 default_file_splice_write+0x3c/0x90 fs/splice.c:810 do_splice_from fs/splice.c:852 [inline] direct_splice_actor+0x123/0x190 fs/splice.c:1019 splice_direct_to_actor+0x2e7/0x890 fs/splice.c:974 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xce0 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64 fs/read_write.c:1494 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4401f9 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd32dae608 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401f9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000401a80 R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 1: save_stack+0x45/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc mm/kasan/kasan.c:553 [inline] kasan_kmalloc+0xce/0xf0 mm/kasan/kasan.c:531 __do_kmalloc mm/slab.c:3727 [inline] __kmalloc+0x15d/0x750 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] kzalloc include/linux/slab.h:709 [inline] vc_do_resize+0x262/0x14a0 drivers/tty/vt/vt.c:1190 vc_resize+0x4d/0x60 drivers/tty/vt/vt.c:1307 fbcon_init+0x1062/0x1b00 drivers/video/fbdev/core/fbcon.c:1179 visual_init+0x337/0x620 drivers/tty/vt/vt.c:1054 do_bind_con_driver+0x549/0x8c0 drivers/tty/vt/vt.c:3507 do_take_over_console+0x449/0x590 drivers/tty/vt/vt.c:4068 do_fbcon_takeover+0x116/0x220 drivers/video/fbdev/core/fbcon.c:556 fbcon_fb_registered drivers/video/fbdev/core/fbcon.c:3228 [inline] fbcon_event_notify+0x1786/0x1dba drivers/video/fbdev/core/fbcon.c:3358 notifier_call_chain+0xc2/0x230 kernel/notifier.c:93 __blocking_notifier_call_chain kernel/notifier.c:317 [inline] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] blocking_notifier_call_chain kernel/notifier.c:328 [inline] blocking_notifier_call_chain+0x94/0xb0 kernel/notifier.c:325 fb_notifier_call_chain+0x25/0x30 drivers/video/fbdev/core/fb_notify.c:45 do_register_framebuffer drivers/video/fbdev/core/fbmem.c:1708 [inline] register_framebuffer+0x61d/0xa70 drivers/video/fbdev/core/fbmem.c:1831 vga16fb_probe+0x711/0x825 drivers/video/fbdev/vga16fb.c:1373 platform_drv_probe+0x93/0x160 drivers/base/platform.c:582 really_probe+0x4a0/0x650 drivers/base/dd.c:500 driver_probe_device+0x103/0x1b0 drivers/base/dd.c:661 __device_attach_driver+0x225/0x290 drivers/base/dd.c:748 bus_for_each_drv+0x16c/0x1f0 drivers/base/bus.c:464 __device_attach+0x237/0x350 drivers/base/dd.c:814 device_initial_probe+0x1b/0x20 drivers/base/dd.c:861 bus_probe_device+0x1f7/0x2a0 drivers/base/bus.c:524 device_add+0xb42/0x1760 drivers/base/core.c:1985 platform_device_add+0x366/0x6f0 drivers/base/platform.c:418 vga16fb_init+0x15f/0x1d6 drivers/video/fbdev/vga16fb.c:1431 do_one_initcall+0x107/0x78c init/main.c:883 do_initcall_level init/main.c:951 [inline] do_initcalls init/main.c:959 [inline] do_basic_setup init/main.c:977 [inline] kernel_init_freeable+0x4d4/0x5c8 init/main.c:1144 kernel_init+0x12/0x1c4 init/main.c:1061 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff8880a540c180 which belongs to the cache kmalloc-8192 of size 8192 The buggy address is located 4800 bytes inside of 8192-byte region [ffff8880a540c180, ffff8880a540e180) The buggy address belongs to the page: page:ffffea0002950300 count:1 mapcount:0 mapping:ffff88812c315080 index:0x0 compound_mapcount: 0 flags: 0xfffe0000008100(slab|head) raw: 00fffe0000008100 ffffea0002991108 ffffea00028c7c08 ffff88812c315080 raw: 0000000000000000 ffff8880a540c180 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a540d300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a540d380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880a540d400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ^ ffff8880a540d480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880a540d500: 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/12/05 19:02 | linux-4.19.y | fb683b5e3f53 | 9fd5a512 | .config | console log | report | syz | C | ci2-linux-4-19 | |||
2019/12/05 08:29 | linux-4.19.y | 174651bdf802 | b2088328 | .config | console log | report | syz | C | ci2-linux-4-19 | |||
2019/12/03 06:10 | linux-4.19.y | 174651bdf802 | ab342da3 | .config | console log | report | syz | C | ci2-linux-4-19 | |||
2019/12/03 05:11 | linux-4.19.y | 174651bdf802 | ab342da3 | .config | console log | report | syz | C | ci2-linux-4-19 | |||
2019/12/04 18:32 | linux-4.19.y | 174651bdf802 | b2088328 | .config | console log | report | syz | ci2-linux-4-19 | ||||
2019/12/12 21:22 | linux-4.19.y | fb683b5e3f53 | 08003f64 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/12 18:38 | linux-4.19.y | fb683b5e3f53 | 08003f64 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/12 15:01 | linux-4.19.y | fb683b5e3f53 | d973f528 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/12 12:34 | linux-4.19.y | fb683b5e3f53 | d973f528 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/12 10:15 | linux-4.19.y | fb683b5e3f53 | d973f528 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/12 05:47 | linux-4.19.y | fb683b5e3f53 | d973f528 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/12 04:44 | linux-4.19.y | fb683b5e3f53 | 0d368675 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/12 02:00 | linux-4.19.y | fb683b5e3f53 | 0d368675 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/11 23:03 | linux-4.19.y | fb683b5e3f53 | 0d368675 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/11 20:06 | linux-4.19.y | fb683b5e3f53 | 0d368675 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/11 18:29 | linux-4.19.y | fb683b5e3f53 | 0d368675 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/11 13:33 | linux-4.19.y | fb683b5e3f53 | 101194eb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/11 11:10 | linux-4.19.y | fb683b5e3f53 | 101194eb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/11 09:15 | linux-4.19.y | fb683b5e3f53 | 101194eb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/11 06:10 | linux-4.19.y | fb683b5e3f53 | 101194eb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/10 17:56 | linux-4.19.y | fb683b5e3f53 | 4b83c8fb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/10 16:10 | linux-4.19.y | fb683b5e3f53 | 4b83c8fb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/10 14:52 | linux-4.19.y | fb683b5e3f53 | 4b83c8fb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/10 13:49 | linux-4.19.y | fb683b5e3f53 | 4b83c8fb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/10 11:27 | linux-4.19.y | fb683b5e3f53 | 4b83c8fb | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/10 00:07 | linux-4.19.y | fb683b5e3f53 | b31eda3d | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/09 18:31 | linux-4.19.y | fb683b5e3f53 | b31eda3d | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/09 16:41 | linux-4.19.y | fb683b5e3f53 | b31eda3d | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/09 11:18 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/09 04:52 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/09 02:42 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/08 21:29 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/08 16:55 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/08 05:36 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/08 02:34 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/08 01:43 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/08 01:43 | linux-4.19.y | fb683b5e3f53 | 1508f453 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 17:13 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 17:12 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:36 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:24 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:23 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:22 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:21 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:19 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:18 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 16:15 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 15:31 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 15:27 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 06:58 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 06:52 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 04:40 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 03:54 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/07 01:30 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/06 22:44 | linux-4.19.y | fb683b5e3f53 | 85f26751 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/06 13:55 | linux-4.19.y | fb683b5e3f53 | 12c3b6cd | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/06 13:55 | linux-4.19.y | fb683b5e3f53 | 12c3b6cd | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/06 13:52 | linux-4.19.y | fb683b5e3f53 | 12c3b6cd | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/06 13:51 | linux-4.19.y | fb683b5e3f53 | 12c3b6cd | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/06 07:42 | linux-4.19.y | fb683b5e3f53 | 98b4ef2d | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/05 18:46 | linux-4.19.y | fb683b5e3f53 | 9fd5a512 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/05 18:45 | linux-4.19.y | fb683b5e3f53 | 9fd5a512 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/05 16:59 | linux-4.19.y | fb683b5e3f53 | 9fd5a512 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/05 10:21 | linux-4.19.y | 174651bdf802 | b2088328 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/05 00:44 | linux-4.19.y | 174651bdf802 | b2088328 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/05 00:35 | linux-4.19.y | 174651bdf802 | b2088328 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/04 18:38 | linux-4.19.y | 174651bdf802 | b2088328 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/04 08:58 | linux-4.19.y | 174651bdf802 | 0ecb9746 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/04 08:01 | linux-4.19.y | 174651bdf802 | 0ecb9746 | .config | console log | report | ci2-linux-4-19 | |||||
2019/12/03 16:28 | linux-4.19.y | 174651bdf802 | ab342da3 | .config | console log | report | ci2-linux-4-19 |