Date
July 1, 2025, 11:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.421593] ================================================================== [ 18.421686] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 18.421757] Write of size 4 at addr fff00000c7732275 by task kunit_try_catch/175 [ 18.421812] [ 18.421885] CPU: 1 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.421979] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.422022] Hardware name: linux,dummy-virt (DT) [ 18.422059] Call trace: [ 18.422083] show_stack+0x20/0x38 (C) [ 18.422151] dump_stack_lvl+0x8c/0xd0 [ 18.422203] print_report+0x118/0x608 [ 18.422252] kasan_report+0xdc/0x128 [ 18.422309] kasan_check_range+0x100/0x1a8 [ 18.422360] __asan_memset+0x34/0x78 [ 18.422411] kmalloc_oob_memset_4+0x150/0x300 [ 18.422460] kunit_try_run_case+0x170/0x3f0 [ 18.422511] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.422566] kthread+0x328/0x630 [ 18.422611] ret_from_fork+0x10/0x20 [ 18.422663] [ 18.422682] Allocated by task 175: [ 18.422713] kasan_save_stack+0x3c/0x68 [ 18.422768] kasan_save_track+0x20/0x40 [ 18.422808] kasan_save_alloc_info+0x40/0x58 [ 18.422850] __kasan_kmalloc+0xd4/0xd8 [ 18.422889] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.422930] kmalloc_oob_memset_4+0xb0/0x300 [ 18.422979] kunit_try_run_case+0x170/0x3f0 [ 18.423020] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.423072] kthread+0x328/0x630 [ 18.423106] ret_from_fork+0x10/0x20 [ 18.423153] [ 18.423188] The buggy address belongs to the object at fff00000c7732200 [ 18.423188] which belongs to the cache kmalloc-128 of size 128 [ 18.423254] The buggy address is located 117 bytes inside of [ 18.423254] allocated 120-byte region [fff00000c7732200, fff00000c7732278) [ 18.423348] [ 18.423387] The buggy address belongs to the physical page: [ 18.423437] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107732 [ 18.423513] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.423569] page_type: f5(slab) [ 18.423614] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.423667] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.423711] page dumped because: kasan: bad access detected [ 18.423744] [ 18.423763] Memory state around the buggy address: [ 18.423799] fff00000c7732100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.423845] fff00000c7732180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.423892] >fff00000c7732200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.423968] ^ [ 18.424088] fff00000c7732280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.424197] fff00000c7732300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.424253] ==================================================================
[ 11.625034] ================================================================== [ 11.625543] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 11.625949] Write of size 4 at addr ffff888102ef5975 by task kunit_try_catch/191 [ 11.626387] [ 11.626530] CPU: 1 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.626579] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.626591] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.626611] Call Trace: [ 11.626625] <TASK> [ 11.626643] dump_stack_lvl+0x73/0xb0 [ 11.626675] print_report+0xd1/0x650 [ 11.626699] ? __virt_addr_valid+0x1db/0x2d0 [ 11.626722] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.626742] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.626763] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.626783] kasan_report+0x141/0x180 [ 11.626804] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.626828] kasan_check_range+0x10c/0x1c0 [ 11.626851] __asan_memset+0x27/0x50 [ 11.626869] kmalloc_oob_memset_4+0x166/0x330 [ 11.626890] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 11.626911] ? __schedule+0x10cc/0x2b60 [ 11.627099] ? __pfx_read_tsc+0x10/0x10 [ 11.627123] ? ktime_get_ts64+0x86/0x230 [ 11.627146] kunit_try_run_case+0x1a5/0x480 [ 11.627172] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.627194] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.627218] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.627239] ? __kthread_parkme+0x82/0x180 [ 11.627260] ? preempt_count_sub+0x50/0x80 [ 11.627283] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.627306] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.627329] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.627352] kthread+0x337/0x6f0 [ 11.627370] ? trace_preempt_on+0x20/0xc0 [ 11.627407] ? __pfx_kthread+0x10/0x10 [ 11.627426] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.627446] ? calculate_sigpending+0x7b/0xa0 [ 11.627469] ? __pfx_kthread+0x10/0x10 [ 11.627489] ret_from_fork+0x116/0x1d0 [ 11.627506] ? __pfx_kthread+0x10/0x10 [ 11.627525] ret_from_fork_asm+0x1a/0x30 [ 11.627556] </TASK> [ 11.627567] [ 11.635178] Allocated by task 191: [ 11.635385] kasan_save_stack+0x45/0x70 [ 11.635541] kasan_save_track+0x18/0x40 [ 11.635675] kasan_save_alloc_info+0x3b/0x50 [ 11.635908] __kasan_kmalloc+0xb7/0xc0 [ 11.636184] __kmalloc_cache_noprof+0x189/0x420 [ 11.636509] kmalloc_oob_memset_4+0xac/0x330 [ 11.636721] kunit_try_run_case+0x1a5/0x480 [ 11.636938] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.637241] kthread+0x337/0x6f0 [ 11.637428] ret_from_fork+0x116/0x1d0 [ 11.637667] ret_from_fork_asm+0x1a/0x30 [ 11.637811] [ 11.637883] The buggy address belongs to the object at ffff888102ef5900 [ 11.637883] which belongs to the cache kmalloc-128 of size 128 [ 11.638614] The buggy address is located 117 bytes inside of [ 11.638614] allocated 120-byte region [ffff888102ef5900, ffff888102ef5978) [ 11.639322] [ 11.639429] The buggy address belongs to the physical page: [ 11.639607] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ef5 [ 11.639852] flags: 0x200000000000000(node=0|zone=2) [ 11.640160] page_type: f5(slab) [ 11.640340] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.640704] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.641046] page dumped because: kasan: bad access detected [ 11.641267] [ 11.641336] Memory state around the buggy address: [ 11.641501] ffff888102ef5800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.642407] ffff888102ef5880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.642911] >ffff888102ef5900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.643353] ^ [ 11.643645] ffff888102ef5980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.643860] ffff888102ef5a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.644072] ==================================================================