Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.531664] ================================================================== [ 22.531915] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 22.532561] Read of size 1 at addr fff00000c787b0c8 by task kunit_try_catch/207 [ 22.532744] [ 22.532879] CPU: 1 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 22.533093] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.533156] Hardware name: linux,dummy-virt (DT) [ 22.533239] Call trace: [ 22.533297] show_stack+0x20/0x38 (C) [ 22.533441] dump_stack_lvl+0x8c/0xd0 [ 22.533567] print_report+0x118/0x608 [ 22.533686] kasan_report+0xdc/0x128 [ 22.533800] __asan_report_load1_noabort+0x20/0x30 [ 22.533922] kmem_cache_oob+0x344/0x430 [ 22.534034] kunit_try_run_case+0x170/0x3f0 [ 22.534160] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.534297] kthread+0x328/0x630 [ 22.534458] ret_from_fork+0x10/0x20 [ 22.534623] [ 22.534903] Allocated by task 207: [ 22.534973] kasan_save_stack+0x3c/0x68 [ 22.535062] kasan_save_track+0x20/0x40 [ 22.535147] kasan_save_alloc_info+0x40/0x58 [ 22.535522] __kasan_slab_alloc+0xa8/0xb0 [ 22.535636] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 22.535772] kmem_cache_oob+0x12c/0x430 [ 22.535876] kunit_try_run_case+0x170/0x3f0 [ 22.536330] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.536458] kthread+0x328/0x630 [ 22.536793] ret_from_fork+0x10/0x20 [ 22.536931] [ 22.536999] The buggy address belongs to the object at fff00000c787b000 [ 22.536999] which belongs to the cache test_cache of size 200 [ 22.537184] The buggy address is located 0 bytes to the right of [ 22.537184] allocated 200-byte region [fff00000c787b000, fff00000c787b0c8) [ 22.537334] [ 22.537386] The buggy address belongs to the physical page: [ 22.537484] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10787b [ 22.537893] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.538090] page_type: f5(slab) [ 22.538184] raw: 0bfffe0000000000 fff00000c5696dc0 dead000000000122 0000000000000000 [ 22.538414] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 22.538551] page dumped because: kasan: bad access detected [ 22.538666] [ 22.538731] Memory state around the buggy address: [ 22.538826] fff00000c787af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.538918] fff00000c787b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.539019] >fff00000c787b080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 22.539100] ^ [ 22.539214] fff00000c787b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.539757] fff00000c787b180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.539932] ==================================================================
[ 11.498377] ================================================================== [ 11.499327] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 11.499564] Read of size 1 at addr ffff8881028a90c8 by task kunit_try_catch/224 [ 11.500069] [ 11.500294] CPU: 1 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 11.500367] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.500408] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.500440] Call Trace: [ 11.500452] <TASK> [ 11.500468] dump_stack_lvl+0x73/0xb0 [ 11.500496] print_report+0xd1/0x650 [ 11.500519] ? __virt_addr_valid+0x1db/0x2d0 [ 11.500541] ? kmem_cache_oob+0x402/0x530 [ 11.500559] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.500581] ? kmem_cache_oob+0x402/0x530 [ 11.500600] kasan_report+0x141/0x180 [ 11.500634] ? kmem_cache_oob+0x402/0x530 [ 11.500657] __asan_report_load1_noabort+0x18/0x20 [ 11.500678] kmem_cache_oob+0x402/0x530 [ 11.500696] ? trace_hardirqs_on+0x37/0xe0 [ 11.500719] ? __pfx_kmem_cache_oob+0x10/0x10 [ 11.500744] ? finish_task_switch.isra.0+0x153/0x700 [ 11.500765] ? __switch_to+0x47/0xf50 [ 11.500793] ? __pfx_read_tsc+0x10/0x10 [ 11.500814] ? ktime_get_ts64+0x86/0x230 [ 11.500838] kunit_try_run_case+0x1a5/0x480 [ 11.500859] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.500878] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.500902] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.500926] ? __kthread_parkme+0x82/0x180 [ 11.500946] ? preempt_count_sub+0x50/0x80 [ 11.500968] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.500989] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.501013] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.501036] kthread+0x337/0x6f0 [ 11.501055] ? trace_preempt_on+0x20/0xc0 [ 11.501077] ? __pfx_kthread+0x10/0x10 [ 11.501097] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.501119] ? calculate_sigpending+0x7b/0xa0 [ 11.501143] ? __pfx_kthread+0x10/0x10 [ 11.501186] ret_from_fork+0x116/0x1d0 [ 11.501204] ? __pfx_kthread+0x10/0x10 [ 11.501230] ret_from_fork_asm+0x1a/0x30 [ 11.501260] </TASK> [ 11.501271] [ 11.515555] Allocated by task 224: [ 11.515972] kasan_save_stack+0x45/0x70 [ 11.516458] kasan_save_track+0x18/0x40 [ 11.516605] kasan_save_alloc_info+0x3b/0x50 [ 11.517082] __kasan_slab_alloc+0x91/0xa0 [ 11.517523] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.517935] kmem_cache_oob+0x157/0x530 [ 11.518153] kunit_try_run_case+0x1a5/0x480 [ 11.518532] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.518963] kthread+0x337/0x6f0 [ 11.519097] ret_from_fork+0x116/0x1d0 [ 11.519231] ret_from_fork_asm+0x1a/0x30 [ 11.519372] [ 11.519446] The buggy address belongs to the object at ffff8881028a9000 [ 11.519446] which belongs to the cache test_cache of size 200 [ 11.519994] The buggy address is located 0 bytes to the right of [ 11.519994] allocated 200-byte region [ffff8881028a9000, ffff8881028a90c8) [ 11.520886] [ 11.521172] The buggy address belongs to the physical page: [ 11.521450] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028a9 [ 11.521877] flags: 0x200000000000000(node=0|zone=2) [ 11.522215] page_type: f5(slab) [ 11.522430] raw: 0200000000000000 ffff8881028a7000 dead000000000122 0000000000000000 [ 11.522794] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 11.523308] page dumped because: kasan: bad access detected [ 11.523486] [ 11.523557] Memory state around the buggy address: [ 11.524042] ffff8881028a8f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.525010] ffff8881028a9000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.525742] >ffff8881028a9080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 11.526247] ^ [ 11.526434] ffff8881028a9100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.526677] ffff8881028a9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.527283] ==================================================================