Date
July 17, 2025, 10:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.084027] ================================================================== [ 30.085027] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 30.085160] Read of size 1 at addr fff00000c9ace0c8 by task kunit_try_catch/238 [ 30.085213] [ 30.085250] CPU: 1 UID: 0 PID: 238 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT [ 30.085337] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.085364] Hardware name: linux,dummy-virt (DT) [ 30.085398] Call trace: [ 30.085517] show_stack+0x20/0x38 (C) [ 30.085608] dump_stack_lvl+0x8c/0xd0 [ 30.086235] print_report+0x118/0x5d0 [ 30.086312] kasan_report+0xdc/0x128 [ 30.087006] __asan_report_load1_noabort+0x20/0x30 [ 30.087625] kmem_cache_oob+0x344/0x430 [ 30.087730] kunit_try_run_case+0x170/0x3f0 [ 30.088414] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.088638] kthread+0x328/0x630 [ 30.088685] ret_from_fork+0x10/0x20 [ 30.088735] [ 30.088754] Allocated by task 238: [ 30.088783] kasan_save_stack+0x3c/0x68 [ 30.089049] kasan_save_track+0x20/0x40 [ 30.089193] kasan_save_alloc_info+0x40/0x58 [ 30.089545] __kasan_slab_alloc+0xa8/0xb0 [ 30.089624] kmem_cache_alloc_noprof+0x10c/0x398 [ 30.089670] kmem_cache_oob+0x12c/0x430 [ 30.090243] kunit_try_run_case+0x170/0x3f0 [ 30.090622] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.090695] kthread+0x328/0x630 [ 30.091110] ret_from_fork+0x10/0x20 [ 30.091152] [ 30.091427] The buggy address belongs to the object at fff00000c9ace000 [ 30.091427] which belongs to the cache test_cache of size 200 [ 30.091823] The buggy address is located 0 bytes to the right of [ 30.091823] allocated 200-byte region [fff00000c9ace000, fff00000c9ace0c8) [ 30.092024] [ 30.092048] The buggy address belongs to the physical page: [ 30.092401] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109ace [ 30.092504] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.092563] page_type: f5(slab) [ 30.092842] raw: 0bfffe0000000000 fff00000c5817140 dead000000000122 0000000000000000 [ 30.093049] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 30.093389] page dumped because: kasan: bad access detected [ 30.093426] [ 30.093691] Memory state around the buggy address: [ 30.094228] fff00000c9acdf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 30.094468] fff00000c9ace000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.094731] >fff00000c9ace080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 30.094778] ^ [ 30.095320] fff00000c9ace100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.095631] fff00000c9ace180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.095679] ==================================================================
[ 26.294769] ================================================================== [ 26.295892] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 26.296659] Read of size 1 at addr ffff8881060060c8 by task kunit_try_catch/256 [ 26.297468] [ 26.297739] CPU: 1 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) [ 26.297796] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.297808] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.297829] Call Trace: [ 26.297841] <TASK> [ 26.297859] dump_stack_lvl+0x73/0xb0 [ 26.297890] print_report+0xd1/0x610 [ 26.297912] ? __virt_addr_valid+0x1db/0x2d0 [ 26.297943] ? kmem_cache_oob+0x402/0x530 [ 26.297964] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.297988] ? kmem_cache_oob+0x402/0x530 [ 26.298010] kasan_report+0x141/0x180 [ 26.298031] ? kmem_cache_oob+0x402/0x530 [ 26.298058] __asan_report_load1_noabort+0x18/0x20 [ 26.298092] kmem_cache_oob+0x402/0x530 [ 26.298137] ? __pfx_kmem_cache_oob+0x10/0x10 [ 26.298160] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 26.298190] ? __pfx_kmem_cache_oob+0x10/0x10 [ 26.298217] kunit_try_run_case+0x1a5/0x480 [ 26.298285] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.298309] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.298332] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.298354] ? __kthread_parkme+0x82/0x180 [ 26.298378] ? preempt_count_sub+0x50/0x80 [ 26.298401] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.298424] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.298447] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.298469] kthread+0x337/0x6f0 [ 26.298487] ? trace_preempt_on+0x20/0xc0 [ 26.298512] ? __pfx_kthread+0x10/0x10 [ 26.298532] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.298553] ? calculate_sigpending+0x7b/0xa0 [ 26.298577] ? __pfx_kthread+0x10/0x10 [ 26.298597] ret_from_fork+0x116/0x1d0 [ 26.299011] ? __pfx_kthread+0x10/0x10 [ 26.299038] ret_from_fork_asm+0x1a/0x30 [ 26.299070] </TASK> [ 26.299096] [ 26.311167] Allocated by task 256: [ 26.311637] kasan_save_stack+0x45/0x70 [ 26.311976] kasan_save_track+0x18/0x40 [ 26.312166] kasan_save_alloc_info+0x3b/0x50 [ 26.312660] __kasan_slab_alloc+0x91/0xa0 [ 26.312974] kmem_cache_alloc_noprof+0x123/0x3f0 [ 26.313208] kmem_cache_oob+0x157/0x530 [ 26.313434] kunit_try_run_case+0x1a5/0x480 [ 26.313626] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.313855] kthread+0x337/0x6f0 [ 26.314012] ret_from_fork+0x116/0x1d0 [ 26.314196] ret_from_fork_asm+0x1a/0x30 [ 26.314507] [ 26.314591] The buggy address belongs to the object at ffff888106006000 [ 26.314591] which belongs to the cache test_cache of size 200 [ 26.315061] The buggy address is located 0 bytes to the right of [ 26.315061] allocated 200-byte region [ffff888106006000, ffff8881060060c8) [ 26.315843] [ 26.315942] The buggy address belongs to the physical page: [ 26.316130] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106006 [ 26.316587] flags: 0x200000000000000(node=0|zone=2) [ 26.316828] page_type: f5(slab) [ 26.316975] raw: 0200000000000000 ffff8881015d8640 dead000000000122 0000000000000000 [ 26.317374] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 26.317641] page dumped because: kasan: bad access detected [ 26.317886] [ 26.317965] Memory state around the buggy address: [ 26.318181] ffff888106005f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.318619] ffff888106006000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.318925] >ffff888106006080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 26.319223] ^ [ 26.319573] ffff888106006100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.319887] ffff888106006180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.320195] ==================================================================