It's OK now, mounts read-only on error. What about that BUG on mount? On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin <edward.shishkin@xxxxxxxxx> wrote: > Please, check if this help. > Apply from reiser4 directory. > > Thanks, > Edward. > > > On 12/17/2016 10:08 PM, Dušan Čolić wrote: >> >> When mounting reiser4 partitions I get the following bug, but the >> system keeps working, even as reiser4 remounted partition as read >> only. >> >> All R4 partitions are ccreg40. >> >> Thanks >> >> Dushan >> >> cat /etc/fstab | grep -v "#" >> >> >> /dev/sda1 /boot ext2 noauto,noatime 1 2 >> /dev/md123 none swap sw 0 >> 0 >> /dev/sda2 / reiser4 noatime,onerror=remount-ro >> 0 0 >> /dev/md125 /mnt/backup reiser4 >> noatime,noauto,onerror=remount-ro 0 0 >> /dev/md126 /mnt/media reiser4 >> noatime,users,onerror=remount-ro 0 0 >> /dev/md127 /usr/portage reiser4 >> noatime,onerror=remount-ro 0 0 >> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0 >> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0 >> >> >> cat /proc/mdstat >> Personalities : [raid1] >> md122 : active raid1 sdc1[1] sdb1[0] >> 104320 blocks [2/2] [UU] >> >> md123 : active raid1 sdc2[1] sdb2[0] >> 594304 blocks [2/2] [UU] >> >> md124 : active raid1 sdc5[1] sdb5[0] >> 9775424 blocks [2/2] [UU] >> >> md125 : active raid1 sdc6[1] sdb6[0] >> 68364480 blocks [2/2] [UU] >> >> md126 : active raid1 sdc7[1] sdb7[0] >> 403110912 blocks [2/2] [UU] >> >> md127 : active raid1 sdc8[1] sdb8[0] >> 6433920 blocks [2/2] [UU] >> >> df >> >> Filesystem 1K-blocks Used Available Use% Mounted on >> /dev/sda2 37017728 30413152 6604576 83% / >> tmpfs 680644 1012 679632 1% /run >> dev 10240 0 10240 0% /dev >> shm 3403212 1284 3401928 1% /dev/shm >> cgroup_root 10240 0 10240 0% /sys/fs/cgroup >> /dev/md126 383034100 350741596 32292504 92% /mnt/media >> /dev/md127 6113484 5605344 508140 92% /usr/portage >> none 3403212 12 3403200 1% /run/user/1001 >> none 3403212 0 3403212 0% /run/user/1000 >> /dev/md125 64959612 52568760 12390852 81% /mnt/backup >> >> >> dmesg >> >> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40 >> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]: >> NOTICE: Warning: mounting sda2 with fatal errors, >> forcing read-only mount. >> [ 2.060544] reiser4: sda2: found disk format 4.0.1. >> [ 2.062410] >> ================================================================== >> [ 2.063993] BUG: KASAN: use-after-free in >> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850 >> [ 2.065616] Read of size 4 by task swapper/0/1 >> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo #3 >> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be >> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012 >> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185 >> ffff8801d6000600 >> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c >> ffff8801d6327ad8 >> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8 >> ffffffff811ffb79 >> [ 2.075861] Call Trace: >> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68 >> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70 >> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0 >> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0 >> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40 >> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750 >> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80 >> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750 >> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20 >> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20 >> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70 >> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac >> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8 >> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d >> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b >> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120 >> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40 >> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80 >> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size: 512 >> [ 2.126453] Allocated: >> [ 2.128364] PID = 1 >> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0 >> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0 >> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750 >> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac >> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8 >> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d >> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b >> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120 >> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40 >> [ 2.163918] Freed: >> [ 2.165760] PID = 1 >> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180 >> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90 >> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750 >> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac >> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8 >> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d >> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b >> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120 >> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40 >> [ 2.195902] Memory state around the buggy address: >> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc >> fc fc fc fc >> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc >> fc fc fc fc >> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 2.202460] ^ >> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 2.207471] >> ================================================================== >> [ 2.209162] Disabling lock debugging due to kernel taint >> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete >> disk format upgrade. >> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using >> ehci-pci >> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using >> ehci-pci >> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no >> listeners, quitting >> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model. >> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device >> 8:2. >> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 - >> ffffffff82178000) >> [ 2.317823] Write protecting the kernel read-only data: 16384k >> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 - >> ffff880001c00000) >> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 - >> ffff880002000000) >> [ 2.334644] hub 1-1.4:1.0: USB hub found >> [ 2.336766] hub 1-1.4:1.0: 2 ports detected >> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using >> ehci-pci >> [ 5.221431] random: crng init done >> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1 >> extents:1 across:594300k >> [ 7.661464] reiser4: md126: found disk format 4.0.1. >> [ 7.661541] >> ================================================================== >> [ 7.661546] BUG: KASAN: use-after-free in >> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350 >> [ 7.661548] Read of size 4 by task mount/1662 >> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B >> 4.8.11-gentoo #3 >> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be >> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012 >> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185 >> ffff8801d6000600 >> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c >> ffff8801cf087be0 >> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0 >> ffffffff811ffb79 >> [ 7.661561] Call Trace: >> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68 >> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70 >> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0 >> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0 >> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40 >> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750 >> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80 >> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750 >> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20 >> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220 >> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220 >> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size: 512 >> [ 7.661615] Allocated: >> [ 7.661615] PID = 1662 >> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0 >> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0 >> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750 >> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [ 7.661646] Freed: >> [ 7.661646] PID = 1662 >> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180 >> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90 >> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750 >> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [ 7.661675] Memory state around the buggy address: >> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc >> fc fc fc fc >> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 7.661681] ^ >> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 7.661685] >> ================================================================== >> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements >> [ 11.016722] rcu-perf:Test complete >> [ 26.835385] reiser4: md126: using Hybrid Transaction Model. >> [ 26.857910] reiser4: md127: found disk format 4.0.1. >> [ 26.857995] >> ================================================================== >> [ 26.858002] BUG: KASAN: use-after-free in >> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0 >> [ 26.858003] Read of size 4 by task mount/1662 >> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B >> 4.8.11-gentoo #3 >> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be >> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012 >> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185 >> ffff8801d6000600 >> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c >> ffff8801cf087be0 >> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0 >> ffffffff811ffb79 >> [ 26.858017] Call Trace: >> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68 >> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70 >> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0 >> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0 >> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40 >> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750 >> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80 >> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750 >> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20 >> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220 >> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size: 512 >> [ 26.858067] Allocated: >> [ 26.858068] PID = 1662 >> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0 >> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0 >> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750 >> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [ 26.858098] Freed: >> [ 26.858099] PID = 1662 >> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180 >> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90 >> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750 >> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [ 26.858128] Memory state around the buggy address: >> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc >> fc fc fc fc >> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc >> fc fc fc fc >> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 26.858134] ^ >> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [ 26.858137] >> ================================================================== >> [ 27.199941] reiser4: md127: using Hybrid Transaction Model. >> >> >> [33530.203469] reiser4[mount(11677)]: try_init_format40 >> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]: >> NOTICE: Warning: mounting md125 with fatal errors, >> forcing read-only mount. >> [33530.203480] reiser4: md125: found disk format 4.0.1. >> [33530.203564] >> ================================================================== >> [33530.203570] BUG: KASAN: use-after-free in >> init_format_format40+0x401/0x750 at addr ffff88013164d810 >> [33530.203571] Read of size 4 by task mount/11677 >> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B >> 4.8.11-gentoo #3 >> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be >> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012 >> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185 >> ffff8801d6000600 >> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c >> ffff88000da87be0 >> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0 >> ffffffff811ffb79 >> [33530.203585] Call Trace: >> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68 >> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70 >> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0 >> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0 >> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40 >> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750 >> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80 >> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750 >> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20 >> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220 >> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220 >> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size: 512 >> [33530.203637] Allocated: >> [33530.203638] PID = 11677 >> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0 >> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0 >> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750 >> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [33530.203668] Freed: >> [33530.203669] PID = 11677 >> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50 >> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180 >> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90 >> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750 >> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300 >> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200 >> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20 >> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0 >> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190 >> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080 >> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0 >> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f >> [33530.203697] Memory state around the buggy address: >> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc >> fc fc fc fc >> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb >> fb fb fb fb >> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [33530.203703] ^ >> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb >> fb fb fb fb >> [33530.203707] >> ================================================================== >> [33533.485380] reiser4: md125: using Hybrid Transaction Model. >> -- >> To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" >> in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
