Date
June 5, 2025, 7:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.657423] ================================================================== [ 24.657553] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 24.657674] Write of size 1 at addr fff00000c77e9f00 by task kunit_try_catch/144 [ 24.657789] [ 24.657862] CPU: 1 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250605 #1 PREEMPT [ 24.658059] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.658124] Hardware name: linux,dummy-virt (DT) [ 24.658211] Call trace: [ 24.658843] show_stack+0x20/0x38 (C) [ 24.659321] dump_stack_lvl+0x8c/0xd0 [ 24.660011] print_report+0x118/0x608 [ 24.660246] kasan_report+0xdc/0x128 [ 24.660424] __asan_report_store1_noabort+0x20/0x30 [ 24.660552] kmalloc_big_oob_right+0x2a4/0x2f0 [ 24.660676] kunit_try_run_case+0x170/0x3f0 [ 24.660804] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.660936] kthread+0x328/0x630 [ 24.661056] ret_from_fork+0x10/0x20 [ 24.661499] [ 24.661603] Allocated by task 144: [ 24.661837] kasan_save_stack+0x3c/0x68 [ 24.661943] kasan_save_track+0x20/0x40 [ 24.662043] kasan_save_alloc_info+0x40/0x58 [ 24.662323] __kasan_kmalloc+0xd4/0xd8 [ 24.662480] __kmalloc_cache_noprof+0x16c/0x3c0 [ 24.662644] kmalloc_big_oob_right+0xb8/0x2f0 [ 24.662838] kunit_try_run_case+0x170/0x3f0 [ 24.663054] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.663167] kthread+0x328/0x630 [ 24.663248] ret_from_fork+0x10/0x20 [ 24.663354] [ 24.663401] The buggy address belongs to the object at fff00000c77e8000 [ 24.663401] which belongs to the cache kmalloc-8k of size 8192 [ 24.663955] The buggy address is located 0 bytes to the right of [ 24.663955] allocated 7936-byte region [fff00000c77e8000, fff00000c77e9f00) [ 24.664306] [ 24.664374] The buggy address belongs to the physical page: [ 24.664456] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077e8 [ 24.664592] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 24.664709] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 24.664836] page_type: f5(slab) [ 24.665434] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 24.665624] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 24.665749] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 24.665866] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 24.665985] head: 0bfffe0000000003 ffffc1ffc31dfa01 00000000ffffffff 00000000ffffffff [ 24.666132] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 24.666600] page dumped because: kasan: bad access detected [ 24.666726] [ 24.666803] Memory state around the buggy address: [ 24.666882] fff00000c77e9e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.667029] fff00000c77e9e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.667203] >fff00000c77e9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.667503] ^ [ 24.667759] fff00000c77e9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.667963] fff00000c77ea000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.668061] ==================================================================
[ 10.822009] ================================================================== [ 10.823004] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 10.823492] Write of size 1 at addr ffff888102a0df00 by task kunit_try_catch/161 [ 10.824809] [ 10.825995] CPU: 0 UID: 0 PID: 161 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250605 #1 PREEMPT(voluntary) [ 10.826452] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.826466] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.826486] Call Trace: [ 10.826498] <TASK> [ 10.826512] dump_stack_lvl+0x73/0xb0 [ 10.826541] print_report+0xd1/0x650 [ 10.826563] ? __virt_addr_valid+0x1db/0x2d0 [ 10.826591] ? kmalloc_big_oob_right+0x316/0x370 [ 10.826635] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.826658] ? kmalloc_big_oob_right+0x316/0x370 [ 10.826680] kasan_report+0x141/0x180 [ 10.826701] ? kmalloc_big_oob_right+0x316/0x370 [ 10.826727] __asan_report_store1_noabort+0x1b/0x30 [ 10.826747] kmalloc_big_oob_right+0x316/0x370 [ 10.826769] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 10.826791] ? __schedule+0x10cc/0x2b60 [ 10.826814] ? __pfx_read_tsc+0x10/0x10 [ 10.826834] ? ktime_get_ts64+0x86/0x230 [ 10.826856] kunit_try_run_case+0x1a5/0x480 [ 10.826877] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.826908] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.826950] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.826976] ? __kthread_parkme+0x82/0x180 [ 10.826995] ? preempt_count_sub+0x50/0x80 [ 10.827019] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.827039] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.827062] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.827086] kthread+0x337/0x6f0 [ 10.827104] ? trace_preempt_on+0x20/0xc0 [ 10.827126] ? __pfx_kthread+0x10/0x10 [ 10.827145] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.827167] ? calculate_sigpending+0x7b/0xa0 [ 10.827191] ? __pfx_kthread+0x10/0x10 [ 10.827212] ret_from_fork+0x116/0x1d0 [ 10.827229] ? __pfx_kthread+0x10/0x10 [ 10.827249] ret_from_fork_asm+0x1a/0x30 [ 10.827278] </TASK> [ 10.827288] [ 10.840973] Allocated by task 161: [ 10.841441] kasan_save_stack+0x45/0x70 [ 10.841860] kasan_save_track+0x18/0x40 [ 10.842337] kasan_save_alloc_info+0x3b/0x50 [ 10.842847] __kasan_kmalloc+0xb7/0xc0 [ 10.843294] __kmalloc_cache_noprof+0x189/0x420 [ 10.843450] kmalloc_big_oob_right+0xa9/0x370 [ 10.843595] kunit_try_run_case+0x1a5/0x480 [ 10.843998] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.844586] kthread+0x337/0x6f0 [ 10.845005] ret_from_fork+0x116/0x1d0 [ 10.845452] ret_from_fork_asm+0x1a/0x30 [ 10.845903] [ 10.846133] The buggy address belongs to the object at ffff888102a0c000 [ 10.846133] which belongs to the cache kmalloc-8k of size 8192 [ 10.847121] The buggy address is located 0 bytes to the right of [ 10.847121] allocated 7936-byte region [ffff888102a0c000, ffff888102a0df00) [ 10.847995] [ 10.848220] The buggy address belongs to the physical page: [ 10.848868] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a08 [ 10.849816] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.850397] flags: 0x200000000000040(head|node=0|zone=2) [ 10.850687] page_type: f5(slab) [ 10.851073] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.851694] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.851940] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.852174] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.852407] head: 0200000000000003 ffffea00040a8201 00000000ffffffff 00000000ffffffff [ 10.852639] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.852880] page dumped because: kasan: bad access detected [ 10.853455] [ 10.853614] Memory state around the buggy address: [ 10.854204] ffff888102a0de00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.854729] ffff888102a0de80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.854961] >ffff888102a0df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.855172] ^ [ 10.855287] ffff888102a0df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.855501] ffff888102a0e000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.855733] ==================================================================