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Message-ID: <202411251652.ecbb3c7e-lkp@intel.com>
Date: Mon, 25 Nov 2024 20:53:17 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Kees Cook <kees@...nel.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-unionfs@...r.kernel.org>, <ltp@...ts.linux.it>, Miklos Szeredi
<miklos@...redi.hu>, Kees Cook <kees@...nel.org>, Amir Goldstein
<amir73il@...il.com>, <linux-kernel@...r.kernel.org>,
<linux-hardening@...r.kernel.org>, <oliver.sang@...el.com>
Subject: Re: [PATCH] ovl: Check for NULL OVL_E() results
Hello,
kernel test robot noticed "WARNING:at_fs/overlayfs/util.c:#ovl_path_type[overlay]" on:
commit: d6b14141241121ff7761dc8dfb33d27284fc5331 ("[PATCH] ovl: Check for NULL OVL_E() results")
url: https://github.com/intel-lab-lkp/linux/commits/Kees-Cook/ovl-Check-for-NULL-OVL_E-results/20241121-100558
base: https://git.kernel.org/cgit/linux/kernel/git/vfs/vfs.git vfs.all
patch link: https://lore.kernel.org/all/20241117044612.work.304-kees@kernel.org/
patch subject: [PATCH] ovl: Check for NULL OVL_E() results
in testcase: ltp
version: ltp-x86_64-14c1f76-1_20241111
with following parameters:
disk: 1HDD
fs: ext4
test: syscalls-07
config: x86_64-rhel-9.4-ltp
compiler: gcc-12
test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz (Ivy Bridge) with 8G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202411251652.ecbb3c7e-lkp@intel.com
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241125/202411251652.ecbb3c7e-lkp@intel.com
kern :warn : [ 407.439702] ------------[ cut here ]------------
user :notice: [ 407.448057] fanotify06.c:134: TPASS: group 0 got event: mask 2 pid=5267 fd=13
kern :warn : [ 407.448607] WARNING: CPU: 0 PID: 5267 at fs/overlayfs/util.c:211 ovl_path_type+0xdb/0x220 [overlay]
kern :warn : [ 407.461773] Modules linked in:
user :notice: [ 407.473065] fanotify06.c:134: TPASS: group 1 got event: mask 2 pid=5267 fd=13
kern :warn : [ 407.473711] overlay
kern :warn : [ 407.485300] brd exfat vfat fat xfs
user :notice: [ 407.489747] fanotify06.c:134: TPASS: group 2 got event: mask 2 pid=5267 fd=13
kern :warn : [ 407.490395] ext2 ext4 mbcache jbd2 netconsole btrfs blake2b_generic xor zstd_compress
kern :warn : [ 407.502433] raid6_pq libcrc32c snd_hda_codec_realtek snd_hda_codec_generic snd_hda_scodec_component
user :notice: [ 407.512136] fanotify06.c:217: TPASS: group 3 got no event
kern :warn : [ 407.513249] intel_rapl_msr intel_rapl_common sd_mod x86_pkg_temp_thermal
kern :warn : [ 407.529180] intel_powerclamp sg coretemp snd_hda_intel
user :notice: [ 407.537741] fanotify06.c:217: TPASS: group 4 got no event
kern :warn : [ 407.538876] kvm_intel ipmi_devintf ipmi_msghandler
kern :warn : [ 407.550897] i915 snd_intel_dspcfg snd_intel_sdw_acpi kvm
user :notice: [ 407.557559] fanotify06.c:217: TPASS: group 5 got no event
kern :warn : [ 407.558678] cec snd_hda_codec snd_hda_core
kern :warn : [ 407.570873] intel_gtt snd_hwdep crct10dif_pclmul crc32_pclmul drm_buddy
user :notice: [ 407.576845] fanotify06.c:217: TPASS: group 6 got no event
kern :warn : [ 407.577961] crc32c_intel ahci ghash_clmulni_intel
user :notice: [ 407.586986] fanotify06.c:217: TPASS: group 7 got no event
kern :warn : [ 407.591490] snd_pcm
kern :warn : [ 407.599214] drm_display_helper ttm rapl libahci snd_timer intel_cstate
user :notice: [ 407.606451] fanotify06.c:217: TPASS: group 8 got no event
kern :warn : [ 407.608219] wmi_bmof
kern :warn : [ 407.617727] mei_me intel_uncore drm_kms_helper snd pcspkr
user :notice: [ 407.625498] fanotify06.c:158: TINFO: Test #1: Fanotify merge overlayfs mount mark
kern :warn : [ 407.626824] i2c_i801 lpc_ich i2c_smbus
kern :warn : [ 407.635208] libata mei soundcore video wmi binfmt_misc loop fuse drm dm_mod ip_tables
kern :warn : [ 407.659894] CPU: 0 UID: 0 PID: 5267 Comm: fanotify06 Tainted: G S 6.12.0-rc5-00193-gd6b141412411 #1
kern :warn : [ 407.671076] Tainted: [S]=CPU_OUT_OF_SPEC
kern :warn : [ 407.675743] Hardware name: Hewlett-Packard HP Pro 3340 MT/17A1, BIOS 8.07 01/24/2013
kern :warn : [ 407.684219] RIP: 0010:ovl_path_type+0xdb/0x220 [overlay]
kern :warn : [ 407.690304] Code: 01 00 00 41 8b 04 24 4d 85 f6 0f 84 b7 00 00 00 41 bc 01 00 00 00 85 c0 75 25 5b 44 89 e0 5d 41 5c 41 5d 41 5e c3 cc cc cc cc <0f> 0b 45 31 e4 5b 5d 44 89 e0 41 5c 41 5d 41 5e c3 cc cc cc cc 4c
kern :warn : [ 407.709811] RSP: 0018:ffffc900021ff870 EFLAGS: 00010246
kern :warn : [ 407.715790] RAX: dffffc0000000000 RBX: ffff8881e6ea33a0 RCX: ffffffffc2f437e4
kern :warn : [ 407.723669] RDX: 1ffff1103cdd46c2 RSI: ffffc900021ff8f0 RDI: ffff8881e6ea3610
kern :warn : [ 407.731551] RBP: ffff888001a9e800 R08: 0000000000000000 R09: ffffed1000353d0f
kern :warn : [ 407.739432] R10: ffff888001a9e87f R11: ffff88811835de00 R12: 0000000000000000
kern :warn : [ 407.747312] R13: ffff888001a9e830 R14: ffffc900021ff8f0 R15: 000000000011801e
kern :warn : [ 407.755192] FS: 00007fc80cb3a740(0000) GS:ffff888174c00000(0000) knlGS:0000000000000000
kern :warn : [ 407.764026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kern :warn : [ 407.770512] CR2: 00007f3378006280 CR3: 000000013af18005 CR4: 00000000001726f0
kern :warn : [ 407.778391] Call Trace:
kern :warn : [ 407.781606] <TASK>
kern :warn : [ 407.784463] ? __warn+0xcd/0x260
kern :warn : [ 407.788451] ? ovl_path_type+0xdb/0x220 [overlay]
kern :warn : [ 407.793929] ? report_bug+0x25d/0x2c0
kern :warn : [ 407.798337] ? handle_bug+0x53/0xa0
kern :warn : [ 407.802582] ? exc_invalid_op+0x13/0x40
kern :warn : [ 407.807159] ? asm_exc_invalid_op+0x16/0x20
kern :warn : [ 407.812092] ? ovl_already_copied_up+0x94/0x110 [overlay]
kern :warn : [ 407.818264] ? ovl_path_type+0xdb/0x220 [overlay]
kern :warn : [ 407.823744] ovl_path_realdata+0x16/0x200 [overlay]
kern :warn : [ 407.829384] ovl_open+0x179/0x220 [overlay]
kern :warn : [ 407.834335] ? __pfx_ovl_open+0x10/0x10 [overlay]
kern :warn : [ 407.839807] ? revert_creds+0x7a/0xb0
kern :warn : [ 407.844218] ? ovl_permission+0x143/0x1f0 [overlay]
kern :warn : [ 407.849862] do_dentry_open+0x453/0x10d0
kern :warn : [ 407.854532] ? __pfx_ovl_open+0x10/0x10 [overlay]
kern :warn : [ 407.860011] vfs_open+0x75/0x340
kern :warn : [ 407.863987] do_open+0x41c/0xd40
kern :warn : [ 407.867963] path_openat+0x23b/0x630
kern :warn : [ 407.872289] ? __pfx_path_openat+0x10/0x10
kern :warn : [ 407.877141] ? __pfx_ksys_write+0x10/0x10
kern :warn : [ 407.881898] ? kill_pid_info_type+0xa6/0xc0
kern :warn : [ 407.886824] do_filp_open+0x1b0/0x3e0
kern :warn : [ 407.891240] ? syscall_exit_to_user_mode+0xc/0x1e0
kern :warn : [ 407.896780] ? __pfx_do_filp_open+0x10/0x10
kern :warn : [ 407.901705] ? kfree+0xef/0x400
kern :warn : [ 407.905595] ? _raw_spin_lock+0x81/0xe0
kern :warn : [ 407.910185] ? strncpy_from_user+0x28/0x1f0
kern :warn : [ 407.915111] ? alloc_fd+0x269/0x440
kern :warn : [ 407.919350] do_sys_openat2+0x11e/0x160
kern :warn : [ 407.923934] ? __kasan_slab_alloc+0x2f/0x70
kern :warn : [ 407.928867] ? __pfx_do_sys_openat2+0x10/0x10
kern :warn : [ 407.933975] ? syscall_exit_to_user_mode+0xc/0x1e0
kern :warn : [ 407.939513] ? syscall_exit_to_user_mode+0xc/0x1e0
kern :warn : [ 407.945048] __x64_sys_openat+0x135/0x1d0
kern :warn : [ 407.949806] ? __pfx___x64_sys_openat+0x10/0x10
kern :warn : [ 407.955082] ? syscall_exit_to_user_mode+0x1c1/0x1e0
kern :warn : [ 407.960795] ? do_syscall_64+0x85/0x150
kern :warn : [ 407.965377] do_syscall_64+0x79/0x150
kern :warn : [ 407.969790] ? kmem_cache_free+0x265/0x4d0
kern :warn : [ 407.974635] ? switch_fpu_return+0xe8/0x1f0
kern :warn : [ 407.979567] ? __task_pid_nr_ns+0x21e/0x2a0
kern :warn : [ 407.984497] ? syscall_exit_to_user_mode+0xc/0x1e0
kern :warn : [ 407.990035] ? do_syscall_64+0x85/0x150
kern :warn : [ 407.994617] ? do_syscall_64+0x85/0x150
kern :warn : [ 407.999198] ? do_syscall_64+0x85/0x150
kern :warn : [ 408.003785] ? exc_page_fault+0x57/0xc0
kern :warn : [ 408.008361] entry_SYSCALL_64_after_hwframe+0x76/0x7e
kern :warn : [ 408.014144] RIP: 0033:0x7fc80cc34f81
kern :warn : [ 408.018477] Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 6a 26 0e 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 93 00 00 00 48 8b 54 24 28 64 48 2b 14 25
kern :warn : [ 408.037988] RSP: 002b:00007ffdfed4d7b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
kern :warn : [ 408.046305] RAX: ffffffffffffffda RBX: 0000000000000041 RCX: 00007fc80cc34f81
kern :warn : [ 408.054181] RDX: 0000000000000041 RSI: 000055e24d04dd40 RDI: 00000000ffffff9c
kern :warn : [ 408.062062] RBP: 000055e24d04dd40 R08: 00000000000001a4 R09: 0000000000000000
kern :warn : [ 408.069934] R10: 00000000000001b6 R11: 0000000000000202 R12: 00000000000000a6
kern :warn : [ 408.077813] R13: 00000000000001a4 R14: 0000000000000000 R15: 0000000000000000
kern :warn : [ 408.085692] </TASK>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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