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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "BUG:KASAN:slab-use-after-free_in_xfs_defer_finish_recovery" on: commit: 7f2f7531e0d455f1abb9f48fbbe17c37e8742590 ("xfs: store an ops pointer in struct xfs_defer_pending") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master 39676dfe52331dba909c617f213fdb21015c8d10] in testcase: xfstests version: xfstests-x86_64-f814a0d8-1_20231225 with following parameters: disk: 4HDD fs: xfs test: xfs-rmapbt compiler: gcc-12 test machine: 4 threads Intel(R) Xeon(R) CPU E3-1225 v5 @ 3.30GHz (Skylake) with 16G 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 | Closes: https://lore.kernel.org/oe-lkp/202312271458.851834a0-oliver.sang@intel.com The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20231227/202312271458.851834a0-oliver.sang@intel.com [ 172.112523][ T4713] XFS (sda4): Corruption detected. Unmount and run xfs_repair [ 172.119897][ T4713] ================================================================== [ 172.127821][ T4713] BUG: KASAN: slab-use-after-free in xfs_defer_finish_recovery+0x19c/0x1d0 [xfs] [ 172.136916][ T4713] Read of size 8 at addr ffff8881257529f0 by task mount/4713 [ 172.144139][ T4713] [ 172.146328][ T4713] CPU: 1 PID: 4713 Comm: mount Not tainted 6.7.0-rc4-00053-g7f2f7531e0d4 #1 [ 172.154856][ T4713] Hardware name: HP HP Z238 Microtower Workstation/8183, BIOS N51 Ver. 01.63 10/05/2017 [ 172.164424][ T4713] Call Trace: [ 172.167570][ T4713] [ 172.170368][ T4713] dump_stack_lvl+0x36/0x50 [ 172.174730][ T4713] print_address_description+0x2c/0x3a0 [ 172.181173][ T4713] ? xfs_defer_finish_recovery+0x19c/0x1d0 [xfs] [ 172.187555][ T4713] print_report+0xba/0x2b0 [ 172.191830][ T4713] ? kasan_addr_to_slab+0xd/0x90 [ 172.196623][ T4713] ? xfs_defer_finish_recovery+0x19c/0x1d0 [xfs] [ 172.202954][ T4713] kasan_report+0xc7/0x100 [ 172.207228][ T4713] ? xfs_defer_finish_recovery+0x19c/0x1d0 [xfs] [ 172.213601][ T4713] xfs_defer_finish_recovery+0x19c/0x1d0 [xfs] [ 172.219747][ T4713] xlog_recover_process_intents+0x26d/0xb10 [xfs] [ 172.226169][ T4713] ? _raw_read_unlock_irqrestore+0x50/0x50 [ 172.231823][ T4713] ? xlog_recover_free_trans+0x3d0/0x3d0 [xfs] [ 172.237987][ T4713] ? xfs_buf_rele+0x31d/0x8f0 [xfs] [ 172.243185][ T4713] ? __mod_timer+0x666/0xb30 [ 172.247628][ T4713] ? round_jiffies_up_relative+0x110/0x110 [ 172.253283][ T4713] xlog_recover_finish+0x72/0x430 [xfs] [ 172.258858][ T4713] ? xfs_ag_resv_free+0x40/0x40 [xfs] [ 172.264221][ T4713] ? xlog_recover+0x470/0x470 [xfs] [ 172.269476][ T4713] ? xfs_check_summary_counts+0x23f/0x3c0 [xfs] [ 172.275720][ T4713] xfs_log_mount_finish+0x2a6/0x590 [xfs] [ 172.281452][ T4713] xfs_mountfs+0x117d/0x1c60 [xfs] [ 172.286569][ T4713] ? xfs_mount_reset_sbqflags+0x100/0x100 [xfs] [ 172.292820][ T4713] ? xfs_filestream_pick_ag+0x760/0x760 [xfs] [ 172.298890][ T4713] ? xfs_mru_cache_create+0x38a/0x580 [xfs] [ 172.304789][ T4713] xfs_fs_fill_super+0xf13/0x1740 [xfs] [ 172.310345][ T4713] ? setup_bdev_super+0x2fe/0x640 [ 172.315221][ T4713] get_tree_bdev+0x32b/0x580 [ 172.319666][ T4713] ? xfs_finish_flags+0x290/0x290 [xfs] [ 172.325216][ T4713] ? sget_dev+0xd0/0xd0 [ 172.329227][ T4713] ? vfs_parse_fs_string+0xd8/0x120 [ 172.334284][ T4713] vfs_get_tree+0x81/0x320 [ 172.338574][ T4713] do_new_mount+0x218/0x540 [ 172.342934][ T4713] ? do_add_mount+0x370/0x370 [ 172.347466][ T4713] ? security_capable+0x6e/0xa0 [ 172.352171][ T4713] path_mount+0x2af/0x1350 [ 172.356440][ T4713] ? kasan_save_free_info+0x2b/0x40 [ 172.361496][ T4713] ? finish_automount+0x6e0/0x6e0 [ 172.366375][ T4713] ? user_path_at_empty+0x44/0x50 [ 172.371279][ T4713] ? kmem_cache_free+0x18b/0x490 [ 172.376078][ T4713] ? getname_flags+0xb7/0x440 [ 172.381224][ T4713] __x64_sys_mount+0x210/0x280 [ 172.385846][ T4713] ? path_mount+0x1350/0x1350 [ 172.390375][ T4713] ? from_kgid+0xc0/0xc0 [ 172.394480][ T4713] ? getname_flags+0xb7/0x440 [ 172.399622][ T4713] do_syscall_64+0x3f/0xe0 [ 172.403899][ T4713] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 172.409649][ T4713] RIP: 0033:0x7f977d8cc62a [ 172.413922][ T4713] Code: 48 8b 0d 69 18 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 36 18 0d 00 f7 d8 64 89 01 48 [ 172.433374][ T4713] RSP: 002b:00007fffc4e3ea38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 172.441637][ T4713] RAX: ffffffffffffffda RBX: 00007f977da00264 RCX: 00007f977d8cc62a [ 172.449466][ T4713] RDX: 000055a677172b90 RSI: 000055a677172bd0 RDI: 000055a677172bb0 [ 172.457305][ T4713] RBP: 000055a677172960 R08: 0000000000000000 R09: 00007f977d99ebe0 [ 172.465150][ T4713] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 172.472981][ T4713] R13: 000055a677172bb0 R14: 000055a677172b90 R15: 000055a677172960 [ 172.480810][ T4713]m_cache_alloc+0x158/0x340 [ 172.508483][ T4713] xfs_defer_start_recovery+0x2b/0x230 [xfs] [ 172.514503][ T4713] xlog_recover_intent_item+0x7f/0x150 [xfs] [ 172.520494][ T4713] xlog_recover_rui_commit_pass2+0x18e/0x240 [xfs] [ 172.527009][ T4713] xlog_recover_items_pass2+0xe7/0x220 [xfs] [ 172.533000][ T4713] xlog_recover_commit_trans+0x70f/0xa10 [xfs] [ 172.539160][ T4713] xlog_recovery_process_trans+0x10f/0x140 [xfs] [ 172.545546][ T4713] xlog_recover_process_data+0x11b/0x2a0 [xfs] [ 172.551710][ T4713] xlog_do_recovery_pass+0x57f/0xc90 [xfs] [ 172.557531][ T4713] xlog_do_log_recovery+0x62/0xb0 [xfs] [ 172.563088][ T4713] xlog_do_recover+0x74/0x420 [xfs] [ 172.568307][ T4713] xlog_recover+0x23f/0x470 [xfs] [ 172.573357][ T4713] xfs_log_mount+0x1c1/0x490 [xfs] [ 172.578477][ T4713] xfs_mountfs+0xf66/0x1c60 [xfs] [ 172.583503][ T4713] xfs_fs_fill_super+0xf13/0x1740 [xfs] [ 172.589050][ T4713] get_tree_bdev+0x32b/0x580 [ 172.593493][ T4713] vfs_get_tree+0x81/0x320 [ 172.597766][ T4713] do_new_mount+0x218/0x540 [ 172.602127][ T4713] path_mount+0x2af/0x1350 [ 172.606400][ T4713] __x64_sys_mount+0x210/0x280 [ 172.611021][ T4713] do_syscall_64+0x3f/0xe0 [ 172.615298][ T4713] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 172.621065][ T4713] [ 172.623275][ T4713] Freed by task 4713: [ 172.627115][ T4713] kasan_save_stack+0x33/0x50 [ 172.631651][ T4713] kasan_set_track+0x25/0x30 [ 172.636099][ T4713] kasan_save_free_info+0x2b/0x40 [ 172.640977][ T4713] __kasan_slab_free+0x10a/0x180 [ 172.645769][ T4713] kmem_cache_free+0x18b/0x490 [ 172.650391][ T4713] xfs_defer_cancel+0xb1/0x1d0 [xfs] [ 172.655683][ T4713] xfs_trans_cancel+0x117/0x540 [xfs] [ 172.661064][ T4713] xfs_rmap_recover_work+0x94c/0xd20 [xfs] [ 172.666883][ T4713] xfs_defer_finish_recovery+0x64/0x1d0 [xfs] [ 172.672950][ T4713] xlog_recover_process_intents+0x26d/0xb10 [xfs] [ 172.679374][ T4713] xlog_recover_finish+0x72/0x430 [xfs] [ 172.684933][ T4713] xfs_log_mount_finish+0x2a6/0x590 [xfs] [ 172.690665][ T4713] xfs_mountfs+0x117d/0x1c60 [xfs] [ 172.695780][ T4713] xfs_fs_fill_super+0xf13/0x1740 [xfs] [ 172.701329][ T4713] get_tree_bdev+0x32b/0x580 [ 172.705771][ T4713] vfs_get_tree+0x81/0x320 [ 172.710046][ T4713] do_new_mount+0x218/0x540 [ 172.714407][ T4713] path_mount+0x2af/0x1350 [ 172.718678][ T4713] __x64_sys_mount+0x210/0x280 [ 172.723308][ T4713] do_syscall_64+0x3f/0xe0 [ 172.727595][ T4713] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 172.733347][ T4713] [ 172.735541][ T4713] The buggy address belongs to the object at ffff8881257529c0 [ 172.735541][ T4713] which belongs to the cache xfs_defer_pending of size 64 [ 172.749877][ T4713] The buggy address is located 48 bytes inside of [ 172.749877][ T4713] freed 64-byte region [ffff8881257529c0, ffff888125752a00) [ 172.763358][ T4713] [ 172.765549][ T4713] The buggy address belongs to the physical page: [ 172.771821][ T4713] page:00000000bdec89a5 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888125752b40 pfn:0x125752 [ 172.783203][ T4713] anon flags: 0x17ffffc0000800(slab|node=0|zone=2|lastcpupid=0x1fffff) [ 172.791303][ T4713] page_type: 0xffffffff() [ 172.795508][ T4713] raw: 0017ffffc0000800 ffff88811417db80 0000000000000000 0000000000000001 [ 172.803937][ T4713] raw: ffff888125752b40 00000000802a001c 00000001ffffffff 0000000000000000 [ 172.812378][ T4713] page dumped because: kasan: bad access detected [ 172.818643][ T4713] [ 172.820839][ T4713] Memory state around the buggy address: [ 172.826331][ T4713] ffff888125752880: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc [ 172.834241][ T4713] ffff888125752900: fb fb fb fb fb fb fb fb fc fc fc fc fb fb fb fb [ 172.842159][ T4713] >ffff888125752980: fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb fb [ 172.850076][ T4713] ^ [ 172.857645][ T4713] ffff888125752a00: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc [ 172.865564][ T4713] ffff888125752a80: fb fb fb fb fb fb fb fb fc fc fc fc fb fb fb fb [ 172.873482][ T4713] 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