From: syzbot <syzbot+2d4f8693f438d2bd4bdb@syzkaller.appspotmail.com>
To: airlied@linux.ie, christian.koenig@amd.com, daniel@ffwll.ch,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
maarten.lankhorst@linux.intel.com, mripard@kernel.org,
sumit.semwal@linaro.org, syzkaller-bugs@googlegroups.com,
tzimmermann@suse.de
Subject: [syzbot] kernel BUG in vmf_insert_pfn_prot
Date: Fri, 17 Sep 2021 02:22:22 -0700 [thread overview]
Message-ID: <000000000000fe7dd005cc2d77c0@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 9004fd387338 Add linux-next specific files for 20210917
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17ecf0ad300000
kernel config: https://syzkaller.appspot.com/x/.config?x=45d5ac72f31f29f3
dashboard link: https://syzkaller.appspot.com/bug?extid=2d4f8693f438d2bd4bdb
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2d4f8693f438d2bd4bdb@syzkaller.appspotmail.com
------------[ cut here ]------------
kernel BUG at mm/memory.c:2103!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8279 Comm: syz-executor.0 Not tainted 5.15.0-rc1-next-20210917-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vmf_insert_pfn_prot+0x248/0x450 mm/memory.c:2103
Code: 0f 0b e8 6b d0 ca ff 4d 89 f7 bf 20 00 00 00 41 83 e7 28 4c 89 fe e8 b7 d5 ca ff 49 83 ff 20 0f 85 a5 fe ff ff e8 48 d0 ca ff <0f> 0b 49 be ff ff ff ff ff ff 0f 00 e8 37 d0 ca ff 4d 21 ee 4c 89
RSP: 0000:ffffc90005f47bd0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff92000be8f7c RCX: 0000000000000000
RDX: ffff888050adb900 RSI: ffffffff81ab3e18 RDI: 0000000000000003
RBP: ffff88807e3bcc60 R08: 0000000000000020 R09: ffffc90005f47bb7
R10: ffffffff81ab3e09 R11: 1ffffffff1ebb3fc R12: 000000002001d000
R13: 0000000000145dc3 R14: 0000000008140476 R15: 0000000000000020
FS: 0000555555f1e400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005608abbf4250 CR3: 000000006e072000 CR4: 00000000001506f0
Call Trace:
drm_gem_shmem_fault+0x1e3/0x290 drivers/gpu/drm/drm_gem_shmem_helper.c:564
__do_fault+0x10d/0x4d0 mm/memory.c:3848
do_cow_fault mm/memory.c:4184 [inline]
do_fault mm/memory.c:4285 [inline]
handle_pte_fault mm/memory.c:4541 [inline]
__handle_mm_fault+0x370e/0x5120 mm/memory.c:4676
handle_mm_fault+0x1c8/0x790 mm/memory.c:4774
do_user_addr_fault+0x48b/0x11c0 arch/x86/mm/fault.c:1390
handle_page_fault arch/x86/mm/fault.c:1475 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1531
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f1096c04d5a
Code: 30 48 8b 34 24 48 85 f6 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fe 01 0f 85 a1 01 00 00 48 8b 44 24 10 8b 74 24 18 <89> 30 e9 d2 fc ff ff 48 8b 44 24 10 8b 10 48 8b 04 24 48 85 c0 0f
RSP: 002b:00007ffd0b939970 EFLAGS: 00010246
RAX: 000000002001d000 RBX: 00007f109716c000 RCX: 0000000000000000
RDX: 182c4ff2a4394aee RSI: 0000000000000001 RDI: 0000555555f1e2f0
RBP: 00007ffd0b939a68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 00000000e900f6d2 R12: 00000000001760c0
R13: 00000000000003e8 R14: 00007f1096d67f80 R15: 0000000000176064
Modules linked in:
---[ end trace 1a78047d43092735 ]---
RIP: 0010:vmf_insert_pfn_prot+0x248/0x450 mm/memory.c:2103
Code: 0f 0b e8 6b d0 ca ff 4d 89 f7 bf 20 00 00 00 41 83 e7 28 4c 89 fe e8 b7 d5 ca ff 49 83 ff 20 0f 85 a5 fe ff ff e8 48 d0 ca ff <0f> 0b 49 be ff ff ff ff ff ff 0f 00 e8 37 d0 ca ff 4d 21 ee 4c 89
RSP: 0000:ffffc90005f47bd0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff92000be8f7c RCX: 0000000000000000
RDX: ffff888050adb900 RSI: ffffffff81ab3e18 RDI: 0000000000000003
RBP: ffff88807e3bcc60 R08: 0000000000000020 R09: ffffc90005f47bb7
R10: ffffffff81ab3e09 R11: 1ffffffff1ebb3fc R12: 000000002001d000
R13: 0000000000145dc3 R14: 0000000008140476 R15: 0000000000000020
FS: 0000555555f1e400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb730a0718 CR3: 000000006e072000 CR4: 00000000001506e0
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
next reply other threads:[~2021-09-17 9:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-17 9:22 syzbot [this message]
2021-09-18 15:55 ` [syzbot] kernel BUG in vmf_insert_pfn_prot syzbot
2021-09-18 19:58 ` syzbot
2023-06-13 19:23 ` syzbot
2023-06-14 7:33 ` Dmitry Vyukov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000fe7dd005cc2d77c0@google.com \
--to=syzbot+2d4f8693f438d2bd4bdb@syzkaller.appspotmail.com \
--cc=airlied@linux.ie \
--cc=christian.koenig@amd.com \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=linaro-mm-sig@lists.linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=maarten.lankhorst@linux.intel.com \
--cc=mripard@kernel.org \
--cc=sumit.semwal@linaro.org \
--cc=syzkaller-bugs@googlegroups.com \
--cc=tzimmermann@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox