Date
July 16, 2025, 12:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.034130] ================================================================== [ 31.034343] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 31.034562] Read of size 1 at addr fff00000c9a5d0c8 by task kunit_try_catch/238 [ 31.034627] [ 31.034658] CPU: 0 UID: 0 PID: 238 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 31.034784] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.034811] Hardware name: linux,dummy-virt (DT) [ 31.034844] Call trace: [ 31.034885] show_stack+0x20/0x38 (C) [ 31.034950] dump_stack_lvl+0x8c/0xd0 [ 31.035058] print_report+0x118/0x5d0 [ 31.035123] kasan_report+0xdc/0x128 [ 31.035200] __asan_report_load1_noabort+0x20/0x30 [ 31.035251] kmem_cache_oob+0x344/0x430 [ 31.035296] kunit_try_run_case+0x170/0x3f0 [ 31.035374] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.035525] kthread+0x328/0x630 [ 31.035570] ret_from_fork+0x10/0x20 [ 31.035978] [ 31.036011] Allocated by task 238: [ 31.036291] kasan_save_stack+0x3c/0x68 [ 31.036378] kasan_save_track+0x20/0x40 [ 31.036488] kasan_save_alloc_info+0x40/0x58 [ 31.036589] __kasan_slab_alloc+0xa8/0xb0 [ 31.036681] kmem_cache_alloc_noprof+0x10c/0x398 [ 31.036782] kmem_cache_oob+0x12c/0x430 [ 31.036923] kunit_try_run_case+0x170/0x3f0 [ 31.036979] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.037022] kthread+0x328/0x630 [ 31.037076] ret_from_fork+0x10/0x20 [ 31.037114] [ 31.037133] The buggy address belongs to the object at fff00000c9a5d000 [ 31.037133] which belongs to the cache test_cache of size 200 [ 31.037193] The buggy address is located 0 bytes to the right of [ 31.037193] allocated 200-byte region [fff00000c9a5d000, fff00000c9a5d0c8) [ 31.037479] [ 31.037566] The buggy address belongs to the physical page: [ 31.037665] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a5d [ 31.037796] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.037861] page_type: f5(slab) [ 31.037898] raw: 0bfffe0000000000 fff00000c56a1780 dead000000000122 0000000000000000 [ 31.037972] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 31.038028] page dumped because: kasan: bad access detected [ 31.038263] [ 31.038306] Memory state around the buggy address: [ 31.038422] fff00000c9a5cf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.038529] fff00000c9a5d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.038573] >fff00000c9a5d080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 31.038612] ^ [ 31.038758] fff00000c9a5d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.038892] fff00000c9a5d180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.038971] ==================================================================
[ 23.938091] ================================================================== [ 23.939531] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 23.940291] Read of size 1 at addr ffff8881060870c8 by task kunit_try_catch/256 [ 23.940521] [ 23.941117] CPU: 1 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 23.941178] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.941191] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.941212] Call Trace: [ 23.941227] <TASK> [ 23.941247] dump_stack_lvl+0x73/0xb0 [ 23.941294] print_report+0xd1/0x610 [ 23.941318] ? __virt_addr_valid+0x1db/0x2d0 [ 23.941342] ? kmem_cache_oob+0x402/0x530 [ 23.941363] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.941388] ? kmem_cache_oob+0x402/0x530 [ 23.941410] kasan_report+0x141/0x180 [ 23.941431] ? kmem_cache_oob+0x402/0x530 [ 23.941458] __asan_report_load1_noabort+0x18/0x20 [ 23.941482] kmem_cache_oob+0x402/0x530 [ 23.941503] ? trace_hardirqs_on+0x37/0xe0 [ 23.941527] ? __pfx_kmem_cache_oob+0x10/0x10 [ 23.941782] ? finish_task_switch.isra.0+0x153/0x700 [ 23.941813] ? __switch_to+0x47/0xf80 [ 23.941903] ? __pfx_read_tsc+0x10/0x10 [ 23.941928] ? ktime_get_ts64+0x86/0x230 [ 23.941954] kunit_try_run_case+0x1a5/0x480 [ 23.941980] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.942002] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.942026] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.942049] ? __kthread_parkme+0x82/0x180 [ 23.942068] ? preempt_count_sub+0x50/0x80 [ 23.942090] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.942113] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.942139] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.942165] kthread+0x337/0x6f0 [ 23.942184] ? trace_preempt_on+0x20/0xc0 [ 23.942206] ? __pfx_kthread+0x10/0x10 [ 23.942226] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.942246] ? calculate_sigpending+0x7b/0xa0 [ 23.942270] ? __pfx_kthread+0x10/0x10 [ 23.942303] ret_from_fork+0x116/0x1d0 [ 23.942322] ? __pfx_kthread+0x10/0x10 [ 23.942342] ret_from_fork_asm+0x1a/0x30 [ 23.942372] </TASK> [ 23.942384] [ 23.954810] Allocated by task 256: [ 23.955375] kasan_save_stack+0x45/0x70 [ 23.955884] kasan_save_track+0x18/0x40 [ 23.956380] kasan_save_alloc_info+0x3b/0x50 [ 23.956909] __kasan_slab_alloc+0x91/0xa0 [ 23.957428] kmem_cache_alloc_noprof+0x123/0x3f0 [ 23.957998] kmem_cache_oob+0x157/0x530 [ 23.958471] kunit_try_run_case+0x1a5/0x480 [ 23.959006] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.959651] kthread+0x337/0x6f0 [ 23.960034] ret_from_fork+0x116/0x1d0 [ 23.960171] ret_from_fork_asm+0x1a/0x30 [ 23.960317] [ 23.960390] The buggy address belongs to the object at ffff888106087000 [ 23.960390] which belongs to the cache test_cache of size 200 [ 23.961514] The buggy address is located 0 bytes to the right of [ 23.961514] allocated 200-byte region [ffff888106087000, ffff8881060870c8) [ 23.963064] [ 23.963234] The buggy address belongs to the physical page: [ 23.963948] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106087 [ 23.964236] flags: 0x200000000000000(node=0|zone=2) [ 23.964744] page_type: f5(slab) [ 23.965150] raw: 0200000000000000 ffff888106085000 dead000000000122 0000000000000000 [ 23.965951] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 23.966468] page dumped because: kasan: bad access detected [ 23.966928] [ 23.967117] Memory state around the buggy address: [ 23.967743] ffff888106086f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.968135] ffff888106087000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.968950] >ffff888106087080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 23.969161] ^ [ 23.969837] ffff888106087100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.970404] ffff888106087180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.970669] ==================================================================