Date
July 15, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.532533] ================================================================== [ 15.532835] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 15.533796] Write of size 4 at addr fff00000c592cb75 by task kunit_try_catch/175 [ 15.533862] [ 15.534046] CPU: 1 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.534682] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.534962] Hardware name: linux,dummy-virt (DT) [ 15.534996] Call trace: [ 15.535755] show_stack+0x20/0x38 (C) [ 15.535907] dump_stack_lvl+0x8c/0xd0 [ 15.536395] print_report+0x118/0x5d0 [ 15.536952] kasan_report+0xdc/0x128 [ 15.537376] kasan_check_range+0x100/0x1a8 [ 15.538079] __asan_memset+0x34/0x78 [ 15.538801] kmalloc_oob_memset_4+0x150/0x300 [ 15.538917] kunit_try_run_case+0x170/0x3f0 [ 15.539202] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.539712] kthread+0x328/0x630 [ 15.539782] ret_from_fork+0x10/0x20 [ 15.540326] [ 15.540391] Allocated by task 175: [ 15.540855] kasan_save_stack+0x3c/0x68 [ 15.541602] kasan_save_track+0x20/0x40 [ 15.541796] kasan_save_alloc_info+0x40/0x58 [ 15.542259] __kasan_kmalloc+0xd4/0xd8 [ 15.542308] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.543010] kmalloc_oob_memset_4+0xb0/0x300 [ 15.543072] kunit_try_run_case+0x170/0x3f0 [ 15.543110] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.543152] kthread+0x328/0x630 [ 15.543937] ret_from_fork+0x10/0x20 [ 15.544280] [ 15.544725] The buggy address belongs to the object at fff00000c592cb00 [ 15.544725] which belongs to the cache kmalloc-128 of size 128 [ 15.544838] The buggy address is located 117 bytes inside of [ 15.544838] allocated 120-byte region [fff00000c592cb00, fff00000c592cb78) [ 15.545893] [ 15.545916] The buggy address belongs to the physical page: [ 15.546072] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10592c [ 15.546533] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.546586] page_type: f5(slab) [ 15.547248] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.547546] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.547936] page dumped because: kasan: bad access detected [ 15.548208] [ 15.548638] Memory state around the buggy address: [ 15.548918] fff00000c592ca00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.549588] fff00000c592ca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.549773] >fff00000c592cb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.549817] ^ [ 15.549859] fff00000c592cb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.550591] fff00000c592cc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.550832] ==================================================================
[ 12.615786] ================================================================== [ 12.616854] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.617190] Write of size 4 at addr ffff8881032bb975 by task kunit_try_catch/191 [ 12.617928] [ 12.618319] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.618438] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.618450] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.618479] Call Trace: [ 12.618490] <TASK> [ 12.618504] dump_stack_lvl+0x73/0xb0 [ 12.618536] print_report+0xd1/0x610 [ 12.618559] ? __virt_addr_valid+0x1db/0x2d0 [ 12.618582] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.618604] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.618627] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.618649] kasan_report+0x141/0x180 [ 12.618671] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.618698] kasan_check_range+0x10c/0x1c0 [ 12.618721] __asan_memset+0x27/0x50 [ 12.618740] kmalloc_oob_memset_4+0x166/0x330 [ 12.618772] ? __kasan_check_write+0x18/0x20 [ 12.618792] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.618815] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 12.618840] ? trace_hardirqs_on+0x37/0xe0 [ 12.618864] ? __pfx_read_tsc+0x10/0x10 [ 12.618884] ? ktime_get_ts64+0x86/0x230 [ 12.618908] kunit_try_run_case+0x1a5/0x480 [ 12.618932] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.618957] ? queued_spin_lock_slowpath+0x116/0xb40 [ 12.618982] ? __kthread_parkme+0x82/0x180 [ 12.619003] ? preempt_count_sub+0x50/0x80 [ 12.619026] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.619051] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.619075] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.619101] kthread+0x337/0x6f0 [ 12.619119] ? trace_preempt_on+0x20/0xc0 [ 12.619141] ? __pfx_kthread+0x10/0x10 [ 12.619162] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.619183] ? calculate_sigpending+0x7b/0xa0 [ 12.619207] ? __pfx_kthread+0x10/0x10 [ 12.619228] ret_from_fork+0x116/0x1d0 [ 12.619246] ? __pfx_kthread+0x10/0x10 [ 12.619266] ret_from_fork_asm+0x1a/0x30 [ 12.619296] </TASK> [ 12.619306] [ 12.631079] Allocated by task 191: [ 12.631305] kasan_save_stack+0x45/0x70 [ 12.631611] kasan_save_track+0x18/0x40 [ 12.631966] kasan_save_alloc_info+0x3b/0x50 [ 12.632347] __kasan_kmalloc+0xb7/0xc0 [ 12.632668] __kmalloc_cache_noprof+0x189/0x420 [ 12.632887] kmalloc_oob_memset_4+0xac/0x330 [ 12.633084] kunit_try_run_case+0x1a5/0x480 [ 12.633278] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.633880] kthread+0x337/0x6f0 [ 12.634117] ret_from_fork+0x116/0x1d0 [ 12.634424] ret_from_fork_asm+0x1a/0x30 [ 12.634833] [ 12.634933] The buggy address belongs to the object at ffff8881032bb900 [ 12.634933] which belongs to the cache kmalloc-128 of size 128 [ 12.635949] The buggy address is located 117 bytes inside of [ 12.635949] allocated 120-byte region [ffff8881032bb900, ffff8881032bb978) [ 12.637004] [ 12.637116] The buggy address belongs to the physical page: [ 12.637729] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1032bb [ 12.638082] flags: 0x200000000000000(node=0|zone=2) [ 12.638301] page_type: f5(slab) [ 12.638719] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.639220] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.639811] page dumped because: kasan: bad access detected [ 12.640156] [ 12.640260] Memory state around the buggy address: [ 12.640649] ffff8881032bb800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.640985] ffff8881032bb880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.641275] >ffff8881032bb900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.641910] ^ [ 12.642490] ffff8881032bb980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.642983] ffff8881032bba00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.643504] ==================================================================