Date
July 10, 2025, 6:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.457304] ================================================================== [ 16.457493] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 16.457545] Read of size 1 at addr fff00000c4498dbf by task kunit_try_catch/138 [ 16.457592] [ 16.457623] CPU: 1 UID: 0 PID: 138 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.457700] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.457726] Hardware name: linux,dummy-virt (DT) [ 16.457755] Call trace: [ 16.457776] show_stack+0x20/0x38 (C) [ 16.457940] dump_stack_lvl+0x8c/0xd0 [ 16.457991] print_report+0x118/0x608 [ 16.458036] kasan_report+0xdc/0x128 [ 16.458082] __asan_report_load1_noabort+0x20/0x30 [ 16.458133] kmalloc_oob_left+0x2ec/0x320 [ 16.458178] kunit_try_run_case+0x170/0x3f0 [ 16.458226] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.458282] kthread+0x328/0x630 [ 16.458324] ret_from_fork+0x10/0x20 [ 16.458395] [ 16.458413] Allocated by task 26: [ 16.458441] kasan_save_stack+0x3c/0x68 [ 16.458480] kasan_save_track+0x20/0x40 [ 16.458516] kasan_save_alloc_info+0x40/0x58 [ 16.458555] __kasan_kmalloc+0xd4/0xd8 [ 16.458593] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 16.458637] kstrdup+0x54/0xc8 [ 16.458731] devtmpfs_work_loop+0x6f8/0xa58 [ 16.458871] devtmpfsd+0x50/0x58 [ 16.458945] kthread+0x328/0x630 [ 16.459051] ret_from_fork+0x10/0x20 [ 16.459087] [ 16.459117] Freed by task 26: [ 16.459443] kasan_save_stack+0x3c/0x68 [ 16.459519] kasan_save_track+0x20/0x40 [ 16.459557] kasan_save_free_info+0x4c/0x78 [ 16.459596] __kasan_slab_free+0x6c/0x98 [ 16.459634] kfree+0x214/0x3c8 [ 16.459677] devtmpfs_work_loop+0x804/0xa58 [ 16.459737] devtmpfsd+0x50/0x58 [ 16.459769] kthread+0x328/0x630 [ 16.460098] ret_from_fork+0x10/0x20 [ 16.460195] [ 16.460302] The buggy address belongs to the object at fff00000c4498da0 [ 16.460302] which belongs to the cache kmalloc-16 of size 16 [ 16.460411] The buggy address is located 15 bytes to the right of [ 16.460411] allocated 16-byte region [fff00000c4498da0, fff00000c4498db0) [ 16.460495] [ 16.460559] The buggy address belongs to the physical page: [ 16.460618] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104498 [ 16.460668] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.460749] page_type: f5(slab) [ 16.460785] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 16.461005] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 16.461185] page dumped because: kasan: bad access detected [ 16.461215] [ 16.461258] Memory state around the buggy address: [ 16.461293] fff00000c4498c80: 00 06 fc fc fa fb fc fc 00 00 fc fc fa fb fc fc [ 16.461484] fff00000c4498d00: fa fb fc fc 00 00 fc fc 00 00 fc fc 00 00 fc fc [ 16.461526] >fff00000c4498d80: fa fb fc fc fa fb fc fc 00 07 fc fc fc fc fc fc [ 16.461561] ^ [ 16.461598] fff00000c4498e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.461789] fff00000c4498e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.462244] ==================================================================
[ 11.884054] ================================================================== [ 11.884497] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 11.884734] Read of size 1 at addr ffff88810270913f by task kunit_try_catch/155 [ 11.885772] [ 11.886146] CPU: 1 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 11.886196] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.886306] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.886332] Call Trace: [ 11.886346] <TASK> [ 11.886364] dump_stack_lvl+0x73/0xb0 [ 11.886397] print_report+0xd1/0x650 [ 11.886419] ? __virt_addr_valid+0x1db/0x2d0 [ 11.886442] ? kmalloc_oob_left+0x361/0x3c0 [ 11.886497] ? kasan_complete_mode_report_info+0x64/0x200 [ 11.886520] ? kmalloc_oob_left+0x361/0x3c0 [ 11.886541] kasan_report+0x141/0x180 [ 11.886562] ? kmalloc_oob_left+0x361/0x3c0 [ 11.886588] __asan_report_load1_noabort+0x18/0x20 [ 11.886613] kmalloc_oob_left+0x361/0x3c0 [ 11.886634] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 11.886656] ? __schedule+0x10cc/0x2b60 [ 11.886678] ? __pfx_read_tsc+0x10/0x10 [ 11.886699] ? ktime_get_ts64+0x86/0x230 [ 11.886722] kunit_try_run_case+0x1a5/0x480 [ 11.886746] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.886769] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.886792] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.886827] ? __kthread_parkme+0x82/0x180 [ 11.886847] ? preempt_count_sub+0x50/0x80 [ 11.886871] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.886895] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.886919] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.886944] kthread+0x337/0x6f0 [ 11.886962] ? trace_preempt_on+0x20/0xc0 [ 11.886984] ? __pfx_kthread+0x10/0x10 [ 11.887004] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.887025] ? calculate_sigpending+0x7b/0xa0 [ 11.887060] ? __pfx_kthread+0x10/0x10 [ 11.887081] ret_from_fork+0x116/0x1d0 [ 11.887098] ? __pfx_kthread+0x10/0x10 [ 11.887118] ret_from_fork_asm+0x1a/0x30 [ 11.887148] </TASK> [ 11.887159] [ 11.900314] Allocated by task 44: [ 11.900579] kasan_save_stack+0x45/0x70 [ 11.900828] kasan_save_track+0x18/0x40 [ 11.900997] kasan_save_alloc_info+0x3b/0x50 [ 11.901216] __kasan_kmalloc+0xb7/0xc0 [ 11.901364] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 11.901620] kvasprintf+0xc5/0x150 [ 11.901744] kasprintf+0xb6/0xf0 [ 11.901863] input_devnode+0x46/0x80 [ 11.902238] device_get_devnode+0x145/0x2a0 [ 11.902981] dev_uevent+0x41c/0x730 [ 11.903174] kobject_uevent_env+0x50d/0xff0 [ 11.903346] kobject_uevent+0xf/0x20 [ 11.903475] device_add+0xe4c/0x1820 [ 11.903607] cdev_device_add+0xab/0x1c0 [ 11.904502] evdev_connect+0x356/0x480 [ 11.904948] input_attach_handler.isra.0+0x117/0x1f0 [ 11.905254] input_register_device+0x722/0xe10 [ 11.905446] psmouse_connect+0x6ed/0xe30 [ 11.905614] serio_driver_probe+0x7a/0xb0 [ 11.905799] really_probe+0x1d4/0x920 [ 11.906207] __driver_probe_device+0x18f/0x3e0 [ 11.906426] driver_probe_device+0x4f/0x130 [ 11.906740] __driver_attach+0x1eb/0x4b0 [ 11.907068] bus_for_each_dev+0x10f/0x1a0 [ 11.907453] driver_attach+0x41/0x60 [ 11.907758] serio_handle_event+0x254/0x940 [ 11.907930] process_one_work+0x5ee/0xf60 [ 11.908233] worker_thread+0x758/0x1220 [ 11.908476] kthread+0x337/0x6f0 [ 11.908652] ret_from_fork+0x116/0x1d0 [ 11.908809] ret_from_fork_asm+0x1a/0x30 [ 11.909272] [ 11.909469] Freed by task 44: [ 11.909679] kasan_save_stack+0x45/0x70 [ 11.909984] kasan_save_track+0x18/0x40 [ 11.910425] kasan_save_free_info+0x3f/0x60 [ 11.910902] __kasan_slab_free+0x56/0x70 [ 11.911314] kfree+0x222/0x3f0 [ 11.911513] dev_uevent+0x466/0x730 [ 11.911739] kobject_uevent_env+0x50d/0xff0 [ 11.912211] kobject_uevent+0xf/0x20 [ 11.912577] device_add+0xe4c/0x1820 [ 11.912946] cdev_device_add+0xab/0x1c0 [ 11.913262] evdev_connect+0x356/0x480 [ 11.913625] input_attach_handler.isra.0+0x117/0x1f0 [ 11.913901] input_register_device+0x722/0xe10 [ 11.914420] psmouse_connect+0x6ed/0xe30 [ 11.914740] serio_driver_probe+0x7a/0xb0 [ 11.914919] really_probe+0x1d4/0x920 [ 11.915354] __driver_probe_device+0x18f/0x3e0 [ 11.915764] driver_probe_device+0x4f/0x130 [ 11.916320] __driver_attach+0x1eb/0x4b0 [ 11.916488] bus_for_each_dev+0x10f/0x1a0 [ 11.916628] driver_attach+0x41/0x60 [ 11.916757] serio_handle_event+0x254/0x940 [ 11.917164] process_one_work+0x5ee/0xf60 [ 11.917534] worker_thread+0x758/0x1220 [ 11.917916] kthread+0x337/0x6f0 [ 11.918290] ret_from_fork+0x116/0x1d0 [ 11.918632] ret_from_fork_asm+0x1a/0x30 [ 11.919058] [ 11.919264] The buggy address belongs to the object at ffff888102709120 [ 11.919264] which belongs to the cache kmalloc-16 of size 16 [ 11.919826] The buggy address is located 15 bytes to the right of [ 11.919826] allocated 16-byte region [ffff888102709120, ffff888102709130) [ 11.921025] [ 11.921377] The buggy address belongs to the physical page: [ 11.921599] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102709 [ 11.922102] flags: 0x200000000000000(node=0|zone=2) [ 11.922532] page_type: f5(slab) [ 11.922828] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 11.923572] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 11.924170] page dumped because: kasan: bad access detected [ 11.924766] [ 11.924898] Memory state around the buggy address: [ 11.925131] ffff888102709000: 00 00 fc fc 00 06 fc fc 00 06 fc fc 00 00 fc fc [ 11.925773] ffff888102709080: 00 02 fc fc 00 02 fc fc 00 06 fc fc 00 06 fc fc [ 11.926630] >ffff888102709100: fa fb fc fc fa fb fc fc 00 07 fc fc fc fc fc fc [ 11.927069] ^ [ 11.927517] ffff888102709180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.927928] ffff888102709200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.928463] ==================================================================