Date
June 25, 2025, 8:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 27.254693] ================================================================== [ 27.254922] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 27.254995] Read of size 1 at addr fff00000c78160c8 by task kunit_try_catch/219 [ 27.255045] [ 27.255149] CPU: 1 UID: 0 PID: 219 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 27.255385] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.255421] Hardware name: linux,dummy-virt (DT) [ 27.255454] Call trace: [ 27.255477] show_stack+0x20/0x38 (C) [ 27.255599] dump_stack_lvl+0x8c/0xd0 [ 27.255705] print_report+0x118/0x608 [ 27.255754] kasan_report+0xdc/0x128 [ 27.255829] __asan_report_load1_noabort+0x20/0x30 [ 27.255908] kmem_cache_oob+0x344/0x430 [ 27.255958] kunit_try_run_case+0x170/0x3f0 [ 27.256060] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.256126] kthread+0x328/0x630 [ 27.256170] ret_from_fork+0x10/0x20 [ 27.256234] [ 27.256252] Allocated by task 219: [ 27.256283] kasan_save_stack+0x3c/0x68 [ 27.256325] kasan_save_track+0x20/0x40 [ 27.256364] kasan_save_alloc_info+0x40/0x58 [ 27.256483] __kasan_slab_alloc+0xa8/0xb0 [ 27.256555] kmem_cache_alloc_noprof+0x10c/0x398 [ 27.256633] kmem_cache_oob+0x12c/0x430 [ 27.256717] kunit_try_run_case+0x170/0x3f0 [ 27.256900] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.256943] kthread+0x328/0x630 [ 27.256975] ret_from_fork+0x10/0x20 [ 27.257010] [ 27.257029] The buggy address belongs to the object at fff00000c7816000 [ 27.257029] which belongs to the cache test_cache of size 200 [ 27.257142] The buggy address is located 0 bytes to the right of [ 27.257142] allocated 200-byte region [fff00000c7816000, fff00000c78160c8) [ 27.257493] [ 27.257619] The buggy address belongs to the physical page: [ 27.257705] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107816 [ 27.257789] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.257858] page_type: f5(slab) [ 27.257899] raw: 0bfffe0000000000 fff00000c3ef9c80 dead000000000122 0000000000000000 [ 27.258217] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 27.258540] page dumped because: kasan: bad access detected [ 27.258576] [ 27.258655] Memory state around the buggy address: [ 27.258700] fff00000c7815f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.258763] fff00000c7816000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.258807] >fff00000c7816080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 27.258848] ^ [ 27.258885] fff00000c7816100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.259290] fff00000c7816180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.259403] ==================================================================
[ 22.512580] ================================================================== [ 22.513610] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 22.514538] Read of size 1 at addr ffff888103ae50c8 by task kunit_try_catch/236 [ 22.514814] [ 22.514901] CPU: 1 UID: 0 PID: 236 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 22.514959] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.515130] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.515178] Call Trace: [ 22.515192] <TASK> [ 22.515209] dump_stack_lvl+0x73/0xb0 [ 22.515238] print_report+0xd1/0x650 [ 22.515265] ? __virt_addr_valid+0x1db/0x2d0 [ 22.515289] ? kmem_cache_oob+0x402/0x530 [ 22.515309] ? kasan_complete_mode_report_info+0x2a/0x200 [ 22.515333] ? kmem_cache_oob+0x402/0x530 [ 22.515354] kasan_report+0x141/0x180 [ 22.515374] ? kmem_cache_oob+0x402/0x530 [ 22.515399] __asan_report_load1_noabort+0x18/0x20 [ 22.515421] kmem_cache_oob+0x402/0x530 [ 22.515440] ? trace_hardirqs_on+0x37/0xe0 [ 22.515462] ? __pfx_kmem_cache_oob+0x10/0x10 [ 22.515482] ? finish_task_switch.isra.0+0x153/0x700 [ 22.515504] ? __switch_to+0x47/0xf50 [ 22.515531] ? __pfx_read_tsc+0x10/0x10 [ 22.515551] ? ktime_get_ts64+0x86/0x230 [ 22.515575] kunit_try_run_case+0x1a5/0x480 [ 22.515600] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.515621] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.515641] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.515665] ? __kthread_parkme+0x82/0x180 [ 22.515684] ? preempt_count_sub+0x50/0x80 [ 22.515705] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.515727] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.515748] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.515770] kthread+0x337/0x6f0 [ 22.515788] ? trace_preempt_on+0x20/0xc0 [ 22.515836] ? __pfx_kthread+0x10/0x10 [ 22.515857] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.515878] ? calculate_sigpending+0x7b/0xa0 [ 22.515902] ? __pfx_kthread+0x10/0x10 [ 22.515922] ret_from_fork+0x116/0x1d0 [ 22.515949] ? __pfx_kthread+0x10/0x10 [ 22.515967] ret_from_fork_asm+0x1a/0x30 [ 22.515996] </TASK> [ 22.516006] [ 22.528823] Allocated by task 236: [ 22.528975] kasan_save_stack+0x45/0x70 [ 22.529127] kasan_save_track+0x18/0x40 [ 22.529302] kasan_save_alloc_info+0x3b/0x50 [ 22.529504] __kasan_slab_alloc+0x91/0xa0 [ 22.529644] kmem_cache_alloc_noprof+0x123/0x3f0 [ 22.529843] kmem_cache_oob+0x157/0x530 [ 22.530071] kunit_try_run_case+0x1a5/0x480 [ 22.530313] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.530529] kthread+0x337/0x6f0 [ 22.530679] ret_from_fork+0x116/0x1d0 [ 22.530849] ret_from_fork_asm+0x1a/0x30 [ 22.531074] [ 22.531138] The buggy address belongs to the object at ffff888103ae5000 [ 22.531138] which belongs to the cache test_cache of size 200 [ 22.531685] The buggy address is located 0 bytes to the right of [ 22.531685] allocated 200-byte region [ffff888103ae5000, ffff888103ae50c8) [ 22.532324] [ 22.532398] The buggy address belongs to the physical page: [ 22.532643] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ae5 [ 22.533356] flags: 0x200000000000000(node=0|zone=2) [ 22.534155] page_type: f5(slab) [ 22.534446] raw: 0200000000000000 ffff888100fdcdc0 dead000000000122 0000000000000000 [ 22.534768] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 22.535300] page dumped because: kasan: bad access detected [ 22.535625] [ 22.535721] Memory state around the buggy address: [ 22.535913] ffff888103ae4f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.536429] ffff888103ae5000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.536861] >ffff888103ae5080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 22.537324] ^ [ 22.537672] ffff888103ae5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.537975] ffff888103ae5180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.538446] ==================================================================