Date
July 1, 2025, 11:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.113168] ================================================================== [ 18.113264] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 18.113778] Read of size 1 at addr fff00000c5d4d99f by task kunit_try_catch/139 [ 18.113859] [ 18.113906] CPU: 1 UID: 0 PID: 139 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.114428] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.114521] Hardware name: linux,dummy-virt (DT) [ 18.114672] Call trace: [ 18.114734] show_stack+0x20/0x38 (C) [ 18.114799] dump_stack_lvl+0x8c/0xd0 [ 18.114898] print_report+0x118/0x608 [ 18.114968] kasan_report+0xdc/0x128 [ 18.115064] __asan_report_load1_noabort+0x20/0x30 [ 18.115237] kmalloc_oob_left+0x2ec/0x320 [ 18.115316] kunit_try_run_case+0x170/0x3f0 [ 18.115497] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.115730] kthread+0x328/0x630 [ 18.115875] ret_from_fork+0x10/0x20 [ 18.116006] [ 18.116150] Allocated by task 24: [ 18.116186] kasan_save_stack+0x3c/0x68 [ 18.116232] kasan_save_track+0x20/0x40 [ 18.116271] kasan_save_alloc_info+0x40/0x58 [ 18.116338] __kasan_kmalloc+0xd4/0xd8 [ 18.116377] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 18.116425] kvasprintf+0xe0/0x180 [ 18.116491] __kthread_create_on_node+0x16c/0x350 [ 18.116532] kthread_create_on_node+0xe4/0x130 [ 18.116571] create_worker+0x380/0x6b8 [ 18.116608] worker_thread+0x808/0xf38 [ 18.116644] kthread+0x328/0x630 [ 18.116677] ret_from_fork+0x10/0x20 [ 18.116871] [ 18.116926] The buggy address belongs to the object at fff00000c5d4d980 [ 18.116926] which belongs to the cache kmalloc-16 of size 16 [ 18.117044] The buggy address is located 19 bytes to the right of [ 18.117044] allocated 12-byte region [fff00000c5d4d980, fff00000c5d4d98c) [ 18.117240] [ 18.117365] The buggy address belongs to the physical page: [ 18.117500] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105d4d [ 18.117643] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.117790] page_type: f5(slab) [ 18.117991] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 18.118183] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 18.118263] page dumped because: kasan: bad access detected [ 18.118338] [ 18.118486] Memory state around the buggy address: [ 18.118555] fff00000c5d4d880: 00 05 fc fc fa fb fc fc 00 02 fc fc fa fb fc fc [ 18.118625] fff00000c5d4d900: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 18.118685] >fff00000c5d4d980: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc [ 18.118792] ^ [ 18.118837] fff00000c5d4da00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.118912] fff00000c5d4da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.118984] ==================================================================
[ 10.870926] ================================================================== [ 10.871399] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 10.872145] Read of size 1 at addr ffff88810228a7df by task kunit_try_catch/155 [ 10.872951] [ 10.873223] CPU: 1 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 10.873271] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.873282] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.873303] Call Trace: [ 10.873317] <TASK> [ 10.873336] dump_stack_lvl+0x73/0xb0 [ 10.873413] print_report+0xd1/0x650 [ 10.873436] ? __virt_addr_valid+0x1db/0x2d0 [ 10.873470] ? kmalloc_oob_left+0x361/0x3c0 [ 10.873490] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.873511] ? kmalloc_oob_left+0x361/0x3c0 [ 10.873531] kasan_report+0x141/0x180 [ 10.873551] ? kmalloc_oob_left+0x361/0x3c0 [ 10.873589] __asan_report_load1_noabort+0x18/0x20 [ 10.873611] kmalloc_oob_left+0x361/0x3c0 [ 10.873632] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 10.873653] ? __schedule+0x10cc/0x2b60 [ 10.873674] ? __pfx_read_tsc+0x10/0x10 [ 10.873694] ? ktime_get_ts64+0x86/0x230 [ 10.873717] kunit_try_run_case+0x1a5/0x480 [ 10.873741] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.873762] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.873783] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.873804] ? __kthread_parkme+0x82/0x180 [ 10.873824] ? preempt_count_sub+0x50/0x80 [ 10.873846] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.873868] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.873889] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.873911] kthread+0x337/0x6f0 [ 10.873929] ? trace_preempt_on+0x20/0xc0 [ 10.873952] ? __pfx_kthread+0x10/0x10 [ 10.873971] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.873990] ? calculate_sigpending+0x7b/0xa0 [ 10.874012] ? __pfx_kthread+0x10/0x10 [ 10.874032] ret_from_fork+0x116/0x1d0 [ 10.874049] ? __pfx_kthread+0x10/0x10 [ 10.874068] ret_from_fork_asm+0x1a/0x30 [ 10.874098] </TASK> [ 10.874109] [ 10.884570] Allocated by task 1: [ 10.884771] kasan_save_stack+0x45/0x70 [ 10.884993] kasan_save_track+0x18/0x40 [ 10.885170] kasan_save_alloc_info+0x3b/0x50 [ 10.885314] __kasan_kmalloc+0xb7/0xc0 [ 10.885450] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 10.885864] kstrdup+0x3e/0xa0 [ 10.886043] kstrdup_const+0x2c/0x40 [ 10.886235] __kernfs_new_node+0xa7/0x6d0 [ 10.886401] kernfs_new_node+0x140/0x1e0 [ 10.886533] __kernfs_create_file+0x2d/0x290 [ 10.886718] sysfs_add_bin_file_mode_ns+0x13f/0x4f0 [ 10.886959] sysfs_create_bin_file+0x150/0x200 [ 10.887171] pci_create_attr+0x1e2/0x460 [ 10.887435] pci_create_resource_files+0xb0/0x160 [ 10.887657] pci_sysfs_init+0x32/0x90 [ 10.887850] do_one_initcall+0xd8/0x370 [ 10.888065] kernel_init_freeable+0x420/0x6f0 [ 10.888269] kernel_init+0x23/0x1e0 [ 10.888403] ret_from_fork+0x116/0x1d0 [ 10.888543] ret_from_fork_asm+0x1a/0x30 [ 10.888773] [ 10.888881] The buggy address belongs to the object at ffff88810228a7c0 [ 10.888881] which belongs to the cache kmalloc-16 of size 16 [ 10.889364] The buggy address is located 21 bytes to the right of [ 10.889364] allocated 10-byte region [ffff88810228a7c0, ffff88810228a7ca) [ 10.889971] [ 10.890075] The buggy address belongs to the physical page: [ 10.890321] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10228a [ 10.890680] flags: 0x200000000000000(node=0|zone=2) [ 10.890921] page_type: f5(slab) [ 10.891087] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 10.891423] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 10.891798] page dumped because: kasan: bad access detected [ 10.892045] [ 10.892140] Memory state around the buggy address: [ 10.892353] ffff88810228a680: 00 05 fc fc 00 05 fc fc 00 02 fc fc 00 03 fc fc [ 10.892703] ffff88810228a700: fa fb fc fc 00 02 fc fc 00 05 fc fc 00 02 fc fc [ 10.893024] >ffff88810228a780: 00 02 fc fc 00 02 fc fc 00 02 fc fc 00 07 fc fc [ 10.893331] ^ [ 10.893528] ffff88810228a800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.893739] ffff88810228a880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.893954] ==================================================================