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WARNING in set_precision

Status: fixed on 2018/05/02 05:33
Fix commit: 06a02a816890 KEYS: DNS: limit the length of option strings
First crash: 2386d, last: 2264d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in set_precision (2) wireless C done 117 1548d 1646d 15/27 fixed on 2020/06/18 13:57
upstream WARNING in set_precision net C 140 2186d 2227d 8/27 fixed on 2018/08/07 13:43
upstream WARNING in set_precision (3) bcachefs C 13 55d 54d 0/27 upstream: reported C repro on 2024/05/20 14:18
android-49 WARNING in set_precision (2) C 1537 2173d 1920d 0/3 public: reported C repro on 2019/04/11 08:44

Sample crash report:
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)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3794 at lib/vsprintf.c:1941 set_precision+0x144/0x170 lib/vsprintf.c:1941
precision 1037366 too large[   25.665169] Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 3794 Comm: syz-executor733 Not tainted 4.9.96-g320d53a #10
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d997f6e0 ffffffff81eb0b69 ffffffff83a484a0 00000000ffffffff
 0000000000000000 0000000000000000 0000000000000795 ffff8801d997f7a0
 ffffffff8141f975 0000000041b58ab3 ffffffff841b8030 ffffffff8141f7b6
Call Trace:
 [<ffffffff81eb0b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb0b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8141f975>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff8141fc61>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff811344b2>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565
 [<ffffffff81ed20e4>] set_precision+0x144/0x170 lib/vsprintf.c:1941
 [<ffffffff81edbffe>] vsnprintf+0x31e/0x1840 lib/vsprintf.c:2017
 [<ffffffff81edd54d>] vscnprintf+0x2d/0x60 lib/vsprintf.c:2147
 [<ffffffff8125d484>] vprintk_emit+0xf4/0x790 kernel/printk/printk.c:1847
 [<ffffffff8125db48>] vprintk+0x28/0x30 kernel/printk/printk.c:1913
 [<ffffffff8125db6d>] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1914
 [<ffffffff8142aab5>] vprintk_func kernel/printk/internal.h:36 [inline]
 [<ffffffff8142aab5>] printk+0xaf/0xd7 kernel/printk/printk.c:1975
 [<ffffffff839db5b1>] dns_resolver_preparse.cold.3+0x9d/0x23b net/dns_resolver/dns_key.c:130
 [<ffffffff81ccf9fb>] key_create_or_update+0x35b/0xac0 security/keys/key.c:855
 [<ffffffff81cd4874>] SYSC_add_key security/keys/keyctl.c:125 [inline]
 [<ffffffff81cd4874>] SyS_add_key+0x1b4/0x390 security/keys/keyctl.c:60
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839f3313>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1320):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/04/25 11:12 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 73417389 .config console log report syz C ci-android-49-kasan-gce
2018/04/25 11:11 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 73417389 .config console log report syz C ci-android-49-kasan-gce-root
2018/04/25 10:58 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 73417389 .config console log report syz C ci-android-49-kasan-gce-386
2018/01/26 07:42 https://android.googlesource.com/kernel/common android-4.9 e37256ce150d 1d18b112 .config console log report syz ci-android-49-kasan-gce
2018/01/02 11:17 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/02 09:45 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/02 08:51 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/02 07:35 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/02 02:39 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/01 22:52 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/01 20:20 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/01 12:32 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/01 06:57 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/01 06:39 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/01 01:05 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2017/12/31 14:59 https://android.googlesource.com/kernel/common android-4.9 f3f3457d4582 00193447 .config console log report syz ci-android-49-kasan-gce
2018/01/18 20:16 https://android.googlesource.com/kernel/common android-4.9 87883134eb71 161c1d64 .config console log report syz ci-android-49-kasan-gce-386
2018/05/02 02:45 https://android.googlesource.com/kernel/common android-4.9 19bd3e34d859 d5b114b4 .config console log report ci-android-49-kasan-gce-root
2018/05/02 00:15 https://android.googlesource.com/kernel/common android-4.9 19bd3e34d859 d5b114b4 .config console log report ci-android-49-kasan-gce-root
2018/05/01 20:11 https://android.googlesource.com/kernel/common android-4.9 19bd3e34d859 d5b114b4 .config console log report ci-android-49-kasan-gce
2018/05/01 17:36 https://android.googlesource.com/kernel/common android-4.9 19bd3e34d859 d5b114b4 .config console log report ci-android-49-kasan-gce-root
2018/05/01 09:44 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 d5b114b4 .config console log report ci-android-49-kasan-gce
2018/05/01 04:28 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 d5b114b4 .config console log report ci-android-49-kasan-gce
2018/05/01 01:14 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 d5b114b4 .config console log report ci-android-49-kasan-gce
2018/04/30 21:42 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 d5b114b4 .config console log report ci-android-49-kasan-gce
2018/04/30 16:46 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 06db3cec .config console log report ci-android-49-kasan-gce
2018/04/30 13:17 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d 06db3cec .config console log report ci-android-49-kasan-gce-root
2018/04/30 08:29 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d 06db3cec .config console log report ci-android-49-kasan-gce
2018/04/30 06:10 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d bb79c6ab .config console log report ci-android-49-kasan-gce-root
2018/04/30 03:07 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d bb79c6ab .config console log report ci-android-49-kasan-gce
2018/04/30 00:36 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d bb79c6ab .config console log report ci-android-49-kasan-gce
2018/04/29 19:23 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d bb79c6ab .config console log report ci-android-49-kasan-gce
2018/04/29 02:12 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d d5a5d045 .config console log report ci-android-49-kasan-gce-root
2018/04/28 22:09 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d d5a5d045 .config console log report ci-android-49-kasan-gce
2018/04/28 16:45 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d d5a5d045 .config console log report ci-android-49-kasan-gce-root
2018/04/27 23:02 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d 7785e404 .config console log report ci-android-49-kasan-gce
2018/04/27 15:21 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d 7785e404 .config console log report ci-android-49-kasan-gce
2018/04/27 09:47 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d 73417389 .config console log report ci-android-49-kasan-gce
2018/04/26 23:10 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d 73417389 .config console log report ci-android-49-kasan-gce-root
2018/04/26 21:23 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d 73417389 .config console log report ci-android-49-kasan-gce
2018/04/25 22:40 https://android.googlesource.com/kernel/common android-4.9 8c01d009ed72 73417389 .config console log report ci-android-49-kasan-gce-root
2018/04/25 20:43 https://android.googlesource.com/kernel/common android-4.9 8c01d009ed72 73417389 .config console log report ci-android-49-kasan-gce
2018/04/25 19:34 https://android.googlesource.com/kernel/common android-4.9 8c01d009ed72 73417389 .config console log report ci-android-49-kasan-gce
2018/04/25 18:17 https://android.googlesource.com/kernel/common android-4.9 8c01d009ed72 73417389 .config console log report ci-android-49-kasan-gce
2018/04/25 16:56 https://android.googlesource.com/kernel/common android-4.9 8c01d009ed72 73417389 .config console log report ci-android-49-kasan-gce
2018/04/25 10:06 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 73417389 .config console log report ci-android-49-kasan-gce
2018/04/25 06:28 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 37e76fe2 .config console log report ci-android-49-kasan-gce
2018/04/25 04:23 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 37e76fe2 .config console log report ci-android-49-kasan-gce
2018/04/24 16:27 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 2bf86f40 .config console log report ci-android-49-kasan-gce
2018/04/24 12:17 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c e7e85d36 .config console log report ci-android-49-kasan-gce-root
2018/04/24 10:49 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c e7e85d36 .config console log report ci-android-49-kasan-gce
2018/04/24 05:30 https://android.googlesource.com/kernel/common android-4.9 142d4b530f5a e7e85d36 .config console log report ci-android-49-kasan-gce
2018/04/24 00:34 https://android.googlesource.com/kernel/common android-4.9 142d4b530f5a 0d8e591c .config console log report ci-android-49-kasan-gce-root
2018/04/23 21:58 https://android.googlesource.com/kernel/common android-4.9 142d4b530f5a 0d8e591c .config console log report ci-android-49-kasan-gce
2018/05/01 12:42 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 d5b114b4 .config console log report ci-android-49-kasan-gce-386
2018/05/01 07:15 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 d5b114b4 .config console log report ci-android-49-kasan-gce-386
2018/04/30 14:19 https://android.googlesource.com/kernel/common android-4.9 2bcbbd5b3924 06db3cec .config console log report ci-android-49-kasan-gce-386
2018/04/29 17:11 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d d5a5d045 .config console log report ci-android-49-kasan-gce-386
2018/04/29 08:09 https://android.googlesource.com/kernel/common android-4.9 71fce1edd26d d5a5d045 .config console log report ci-android-49-kasan-gce-386
2018/04/26 13:55 https://android.googlesource.com/kernel/common android-4.9 132f097f6547 73417389 .config console log report ci-android-49-kasan-gce-386
2018/04/25 01:10 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 37e76fe2 .config console log report ci-android-49-kasan-gce-386
2018/04/24 17:35 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 37e76fe2 .config console log report ci-android-49-kasan-gce-386
2018/04/24 14:37 https://android.googlesource.com/kernel/common android-4.9 320d53a9d07c 2bf86f40 .config console log report ci-android-49-kasan-gce-386
2018/04/24 07:50 https://android.googlesource.com/kernel/common android-4.9 142d4b530f5a e7e85d36 .config console log report ci-android-49-kasan-gce-386
* Struck through repros no longer work on HEAD.