All of lore.kernel.org
 help / color / mirror / Atom feed
From: syzbot <syzbot+0e1748603cc9f2dfc87d@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
	 linux-mm@kvack.org, syzkaller-bugs@googlegroups.com
Subject: [syzbot] [mm?] BUG: stack guard page was hit in compat_sys_open
Date: Sun, 13 Oct 2024 23:01:33 -0700	[thread overview]
Message-ID: <670cb3bd.050a0220.4cbc0.0040.GAE@google.com> (raw)

Hello,

syzbot found the following issue on:

HEAD commit:    27cc6fdf7201 Merge tag 'linux_kselftest-fixes-6.12-rc2' of..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13043307980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e3e4d87a80ed4297
dashboard link: https://syzkaller.appspot.com/bug?extid=0e1748603cc9f2dfc87d
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: i386

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-27cc6fdf.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ae2f7d656e32/vmlinux-27cc6fdf.xz
kernel image: https://storage.googleapis.com/syzbot-assets/1b06a62cc1e5/bzImage-27cc6fdf.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0e1748603cc9f2dfc87d@syzkaller.appspotmail.com

BUG: TASK stack guard page was hit at ffffc90002b3ffb8 (stack is ffffc90002b40000..ffffc90002b48000)
Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 12425 Comm: syz.2.2179 Not tainted 6.12.0-rc1-syzkaller-00306-g27cc6fdf7201 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:mark_lock+0x25/0xc60 kernel/locking/lockdep.c:4686
Code: 90 90 90 90 90 55 48 89 e5 41 57 41 56 41 89 d6 48 ba 00 00 00 00 00 fc ff df 41 55 41 54 53 48 83 e4 f0 48 81 ec 10 01 00 00 <48> c7 44 24 30 b3 8a b5 41 48 8d 44 24 30 48 c7 44 24 38 38 51 57
RSP: 0018:ffffc90002b3ffc0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000003
RDX: dffffc0000000000 RSI: ffff888021edaf98 RDI: ffff888021eda440
RBP: ffffc90002b40100 R08: 0000000000000000 R09: 0000000000000006
R10: ffffffff9698ad37 R11: 0000000000000002 R12: dffffc0000000000
R13: ffff888021edaf98 R14: 0000000000000008 R15: ffff888021eda440
FS:  0000000000000000(0000) GS:ffff88802b400000(0063) knlGS:00000000f56f6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffc90002b3ffb8 CR3: 000000005f61e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <#DF>
 </#DF>
 <TASK>
 mark_usage kernel/locking/lockdep.c:4646 [inline]
 __lock_acquire+0x906/0x3ce0 kernel/locking/lockdep.c:5156
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 page_ext_get+0x3a/0x310 mm/page_ext.c:525
 __set_page_owner+0x9a/0x790 mm/page_owner.c:322
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25c0 mm/page_alloc.c:4733
 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265
 alloc_slab_page mm/slub.c:2412 [inline]
 allocate_slab mm/slub.c:2578 [inline]
 new_slab+0x2ba/0x3f0 mm/slub.c:2631
 ___slab_alloc+0xd1d/0x16f0 mm/slub.c:3818
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3908
 __slab_alloc_node mm/slub.c:3961 [inline]
 slab_alloc_node mm/slub.c:4122 [inline]
 kmem_cache_alloc_noprof+0x2ae/0x2f0 mm/slub.c:4141
 p9_tag_alloc+0x9c/0x870 net/9p/client.c:281
 p9_client_prepare_req+0x19f/0x4d0 net/9p/client.c:644
 p9_client_zc_rpc.constprop.0+0x105/0x880 net/9p/client.c:793
 p9_client_read_once+0x443/0x820 net/9p/client.c:1560
 p9_client_read+0x13f/0x1b0 net/9p/client.c:1524
 v9fs_issue_read+0x115/0x310 fs/9p/vfs_addr.c:74
 netfs_retry_read_subrequests fs/netfs/read_retry.c:60 [inline]
 netfs_retry_reads+0x153a/0x1d00 fs/netfs/read_retry.c:232
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_retry_reads+0x155e/0x1d00 fs/netfs/read_retry.c:235
 netfs_rreq_assess+0x5d3/0x870 fs/netfs/read_collect.c:369
 netfs_rreq_terminated+0xe5/0x110 fs/netfs/read_collect.c:405
 netfs_dispatch_unbuffered_reads fs/netfs/direct_read.c:103 [inline]
 netfs_unbuffered_read fs/netfs/direct_read.c:127 [inline]
 netfs_unbuffered_read_iter_locked+0x12f6/0x19b0 fs/netfs/direct_read.c:221
 netfs_unbuffered_read_iter+0xc5/0x100 fs/netfs/direct_read.c:256
 v9fs_file_read_iter+0xbf/0x100 fs/9p/vfs_file.c:361
 __kernel_read+0x3f1/0xb50 fs/read_write.c:527
 integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:28
 ima_calc_file_hash_tfm+0x2c9/0x3e0 security/integrity/ima/ima_crypto.c:480
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
 ima_calc_file_hash+0x1ba/0x490 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x8a7/0xa10 security/integrity/ima/ima_api.c:293
 process_measurement+0x1271/0x2370 security/integrity/ima/ima_main.c:372
 ima_file_check+0xc1/0x110 security/integrity/ima/ima_main.c:572
 security_file_post_open+0x8e/0x210 security/security.c:3127
 do_open fs/namei.c:3776 [inline]
 path_openat+0x1419/0x2d60 fs/namei.c:3933
 do_filp_open+0x1dc/0x430 fs/namei.c:3960
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_compat_sys_open fs/open.c:1481 [inline]
 __se_compat_sys_open fs/open.c:1479 [inline]
 __ia32_compat_sys_open+0x147/0x1e0 fs/open.c:1479
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf740e579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f56f656c EFLAGS: 00000296 ORIG_RAX: 0000000000000005
RAX: ffffffffffffffda RBX: 0000000020000240 RCX: 0000000000000b00
RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mark_lock+0x25/0xc60 kernel/locking/lockdep.c:4686
Code: 90 90 90 90 90 55 48 89 e5 41 57 41 56 41 89 d6 48 ba 00 00 00 00 00 fc ff df 41 55 41 54 53 48 83 e4 f0 48 81 ec 10 01 00 00 <48> c7 44 24 30 b3 8a b5 41 48 8d 44 24 30 48 c7 44 24 38 38 51 57
RSP: 0018:ffffc90002b3ffc0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000003
RDX: dffffc0000000000 RSI: ffff888021edaf98 RDI: ffff888021eda440
RBP: ffffc90002b40100 R08: 0000000000000000 R09: 0000000000000006
R10: ffffffff9698ad37 R11: 0000000000000002 R12: dffffc0000000000
R13: ffff888021edaf98 R14: 0000000000000008 R15: ffff888021eda440
FS:  0000000000000000(0000) GS:ffff88802b400000(0063) knlGS:00000000f56f6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffc90002b3ffb8 CR3: 000000005f61e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	55                   	push   %rbp
   6:	48 89 e5             	mov    %rsp,%rbp
   9:	41 57                	push   %r15
   b:	41 56                	push   %r14
   d:	41 89 d6             	mov    %edx,%r14d
  10:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  17:	fc ff df
  1a:	41 55                	push   %r13
  1c:	41 54                	push   %r12
  1e:	53                   	push   %rbx
  1f:	48 83 e4 f0          	and    $0xfffffffffffffff0,%rsp
  23:	48 81 ec 10 01 00 00 	sub    $0x110,%rsp
* 2a:	48 c7 44 24 30 b3 8a 	movq   $0x41b58ab3,0x30(%rsp) <-- trapping instruction
  31:	b5 41
  33:	48 8d 44 24 30       	lea    0x30(%rsp),%rax
  38:	48                   	rex.W
  39:	c7                   	.byte 0xc7
  3a:	44 24 38             	rex.R and $0x38,%al
  3d:	38 51 57             	cmp    %dl,0x57(%rcx)


---
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.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup


             reply	other threads:[~2024-10-14  6:01 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-14  6:01 syzbot [this message]
2024-10-14  8:23 ` [syzbot] [mm?] BUG: stack guard page was hit in compat_sys_open Dmitry Vyukov
2024-10-14 11:38 ` Kirill A. Shutemov

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=670cb3bd.050a0220.4cbc0.0040.GAE@google.com \
    --to=syzbot+0e1748603cc9f2dfc87d@syzkaller.appspotmail.com \
    --cc=akpm@linux-foundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=syzkaller-bugs@googlegroups.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.