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KMSAN: uninit-value in seq_printf (2)

Status: auto-closed as invalid on 2022/09/30 02:43
Subsystems: fs
[Documentation on labels]
First crash: 978d, last: 711d
Similar bugs (20)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: uninit-value in seq_printf fs 3 1634d 1663d 0/26 auto-closed as invalid on 2020/03/04 05:44
upstream KMSAN: kernel-infoleak in __skb_datagram_iter net 68 243d 348d 23/26 fixed on 2023/09/28 17:51
upstream KMSAN: uninit-value in snd_pcm_hw_rule_add (2) sound 18 710d 977d 0/26 auto-closed as invalid on 2022/09/15 02:38
upstream KMSAN: uninit-value in nsim_udp_tunnel_unset_port kernel C 114 842d 922d 0/26 auto-closed as invalid on 2022/09/27 06:37
upstream KMSAN: uninit-value in number (4) kernel C 7189 551d 929d 0/26 closed as invalid on 2022/11/28 10:01
upstream KMSAN: uninit-value in p9pdu_vwritef v9fs 544 641d 870d 0/26 auto-obsoleted due to no activity on 2022/11/22 23:51
upstream KMSAN: uninit-value in __vmalloc_node_range block 5 860d 905d 0/26 auto-closed as invalid on 2022/04/17 19:38
upstream KMSAN: uninit-value in ptr_to_id fs C 5 867d 888d 0/26 auto-closed as invalid on 2022/09/27 03:12
upstream KMSAN: kernel-infoleak in _copy_to_iter (6) net C 748 810d 899d 20/26 fixed on 2022/03/08 16:11
upstream KMSAN: uninit-value in esp6_init_state net 2 861d 910d 0/26 auto-closed as invalid on 2022/04/16 22:31
upstream KMSAN: uninit-value in kobject_set_name_vargs kernel 5 786d 915d 0/26 auto-closed as invalid on 2022/06/30 14:28
upstream KMSAN: uninit-value in hid_connect kernel C 176 572d 922d 0/26 closed as invalid on 2022/11/03 08:52
upstream KMSAN: uninit-value in preempt_count_add kernel C 6657 595d 595d 0/26 closed as invalid on 2022/10/10 13:29
upstream KMSAN: kernel-infoleak in _copy_to_iter (7) net C 138977 457d 809d 22/26 fixed on 2023/02/24 13:50
upstream KMSAN: uninit-value in vsscanf bluetooth syz 9 816d 882d 0/26 auto-closed as invalid on 2022/09/27 18:52
upstream KMSAN: uninit-value in p9pdu_readf v9fs 14 845d 959d 20/26 fixed on 2022/03/08 16:11
upstream KMSAN: uninit-value in kallsyms_lookup_buildid (2) kernel 12 464d 472d 0/26 closed as invalid on 2023/03/06 11:22
upstream KMSAN: uninit-value in kallsyms_lookup_buildid usb C 232 604d 880d 0/26 closed as invalid on 2022/11/03 10:09
upstream KMSAN: uninit-value in profile_hits (3) kernel C 857 1h26m 152d 0/26 upstream: reported C repro on 2023/12/26 15:59
upstream KMSAN: uninit-value in asix_mdio_read (3) usb C 1582 741d 805d 22/26 fixed on 2023/02/24 13:51
Last patch testing requests (1)
Created Duration User Patch Repo Result
2022/09/30 01:30 22m retest repro https://github.com/google/kmsan.git master OK log

Sample crash report:
=====================================================
BUG: KMSAN: uninit-value in check_pointer lib/vsprintf.c:705 [inline]
BUG: KMSAN: uninit-value in string+0x3d2/0x700 lib/vsprintf.c:717
 check_pointer lib/vsprintf.c:705 [inline]
 string+0x3d2/0x700 lib/vsprintf.c:717
 vsnprintf+0x224f/0x36a0 lib/vsprintf.c:2805
 seq_vprintf fs/seq_file.c:391 [inline]
 seq_printf+0x301/0x500 fs/seq_file.c:406
 proto_seq_show+0x585/0x1780 net/core/sock.c:3878
 traverse+0x353/0xd70 fs/seq_file.c:111
 seq_lseek+0x2a6/0x4d0 fs/seq_file.c:323
 proc_reg_llseek+0x27a/0x4c0 fs/proc/inode.c:284
 vfs_llseek fs/read_write.c:300 [inline]
 ksys_lseek fs/read_write.c:313 [inline]
 __do_sys_lseek fs/read_write.c:324 [inline]
 __se_sys_lseek fs/read_write.c:322 [inline]
 __x64_sys_lseek+0x31e/0x480 fs/read_write.c:322
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Local variable page created at:
 get_futex_key+0xc4/0x1e70
 futex_wait_setup+0x140/0x570 kernel/futex/waitwake.c:602

CPU: 1 PID: 7261 Comm: syz-executor364 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================

Crashes (99):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/12/09 02:38 https://github.com/google/kmsan.git master 8b936c96768e a4a2a501 .config console log report syz C ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/06/15 14:43 https://github.com/google/kmsan.git master 2f3064574275 1719ee24 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/05/10 23:22 https://github.com/google/kmsan.git master d6e2c8c7eb40 8d7b3b67 .config console log report ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/05/01 21:58 https://github.com/google/kmsan.git master d6e2c8c7eb40 2df221f6 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/05/01 18:08 https://github.com/google/kmsan.git master d6e2c8c7eb40 2df221f6 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/04/29 10:13 https://github.com/google/kmsan.git master d6e2c8c7eb40 e9076525 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/04/26 22:50 https://github.com/google/kmsan.git master e8cbf4e6e3e8 1fa34c1b .config console log report ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/04/26 21:10 https://github.com/google/kmsan.git master e8cbf4e6e3e8 1fa34c1b .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/04/25 18:08 https://github.com/google/kmsan.git master b834db009dc5 c889aef9 .config console log report ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/04/21 23:09 https://github.com/google/kmsan.git master 33d9269ef6e0 2738b391 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/04/05 12:48 https://github.com/google/kmsan.git master 33d9269ef6e0 5915c2cb .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/04/01 09:45 https://github.com/google/kmsan.git master 1978a14f70af 68fc921a .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/03/30 08:11 https://github.com/google/kmsan.git master 1978a14f70af 6bdac766 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/03/17 03:01 https://github.com/google/kmsan.git master 724946410067 dfa9a8ed .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/02/27 07:00 https://github.com/google/kmsan.git master 724946410067 45a13a73 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/02/16 17:50 https://github.com/google/kmsan.git master 85cfd6e539bd 8b9ca619 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/02/12 14:07 https://github.com/google/kmsan.git master 85cfd6e539bd 8b9ca619 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/02/09 23:03 https://github.com/google/kmsan.git master 85cfd6e539bd 0b33604d .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/02/02 09:16 https://github.com/google/kmsan.git master 85cfd6e539bd 4ebb2798 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/30 19:49 https://github.com/google/kmsan.git master 85cfd6e539bd 495e00c5 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/25 03:42 https://github.com/google/kmsan.git master 85cfd6e539bd 2cbffd88 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/24 12:31 https://github.com/google/kmsan.git master 85cfd6e539bd 214351e1 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/24 04:29 https://github.com/google/kmsan.git master 85cfd6e539bd 214351e1 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/20 20:10 https://github.com/google/kmsan.git master 85cfd6e539bd b838eb76 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/20 09:25 https://github.com/google/kmsan.git master fa3879a274df 5da9499f .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/18 16:19 https://github.com/google/kmsan.git master fa3879a274df 731a2d23 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/18 09:28 https://github.com/google/kmsan.git master fa3879a274df 731a2d23 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/18 03:48 https://github.com/google/kmsan.git master fa3879a274df 731a2d23 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/17 23:27 https://github.com/google/kmsan.git master fa3879a274df 731a2d23 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/17 18:53 https://github.com/google/kmsan.git master fa3879a274df 731a2d23 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/16 01:48 https://github.com/google/kmsan.git master fa3879a274df 723cfaf0 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/15 23:52 https://github.com/google/kmsan.git master fa3879a274df 723cfaf0 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/15 12:20 https://github.com/google/kmsan.git master fa3879a274df 723cfaf0 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/15 03:08 https://github.com/google/kmsan.git master fa3879a274df 723cfaf0 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/14 18:05 https://github.com/google/kmsan.git master fa3879a274df 53e00b45 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/14 11:46 https://github.com/google/kmsan.git master fa3879a274df b8d780ab .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/13 15:30 https://github.com/google/kmsan.git master fa3879a274df 44d1319a .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/13 08:14 https://github.com/google/kmsan.git master fa3879a274df 44d1319a .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/10 18:32 https://github.com/google/kmsan.git master 81c325bbf94e ddb0ab8c .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/09 22:36 https://github.com/google/kmsan.git master 81c325bbf94e 2ca0d385 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/05 15:34 https://github.com/google/kmsan.git master 81c325bbf94e 6acc789a .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/01/05 12:06 https://github.com/google/kmsan.git master 81c325bbf94e 0a2584dd .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2021/10/12 06:35 https://github.com/google/kmsan.git master c7f84f4e1147 838e7e2c .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2021/10/10 14:19 https://github.com/google/kmsan.git master c7f84f4e1147 838e7e2c .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2021/10/09 01:07 https://github.com/google/kmsan.git master c7f84f4e1147 efe0f24d .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2021/10/06 15:53 https://github.com/google/kmsan.git master c7f84f4e1147 0a63fd36 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2021/10/01 05:41 https://github.com/google/kmsan.git master 90f502f5d016 1d849ab4 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2021/09/22 03:44 https://github.com/google/kmsan.git master f881dcecdc7a 169724fe .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in seq_printf
2022/06/13 16:05 https://github.com/google/kmsan.git master 2f3064574275 0d5abf15 .config console log report ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/05/07 11:29 https://github.com/google/kmsan.git master d6e2c8c7eb40 e60b1103 .config console log report ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/05/07 07:38 https://github.com/google/kmsan.git master d6e2c8c7eb40 e60b1103 .config console log report ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/04/07 12:09 https://github.com/google/kmsan.git master 33d9269ef6e0 c6ff3e05 .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/02/04 00:50 https://github.com/google/kmsan.git master 85cfd6e539bd 30646bfe .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/02/02 07:51 https://github.com/google/kmsan.git master 85cfd6e539bd 4ebb2798 .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/02/01 15:17 https://github.com/google/kmsan.git master 85cfd6e539bd c1c1631d .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/01/22 02:32 https://github.com/google/kmsan.git master 85cfd6e539bd 214351e1 .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/01/11 02:21 https://github.com/google/kmsan.git master 81c325bbf94e ddb0ab8c .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2022/01/10 13:49 https://github.com/google/kmsan.git master 81c325bbf94e 2ca0d385 .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
2021/09/26 15:17 https://github.com/google/kmsan.git master cd2c05533838 8cac236e .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in seq_printf
* Struck through repros no longer work on HEAD.