Date
July 4, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.116740] ================================================================== [ 18.116870] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 18.117159] Write of size 8 at addr fff00000c638ed71 by task kunit_try_catch/176 [ 18.117211] [ 18.117533] CPU: 0 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.117631] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.117656] Hardware name: linux,dummy-virt (DT) [ 18.117814] Call trace: [ 18.117842] show_stack+0x20/0x38 (C) [ 18.117895] dump_stack_lvl+0x8c/0xd0 [ 18.118259] print_report+0x118/0x608 [ 18.118328] kasan_report+0xdc/0x128 [ 18.118373] kasan_check_range+0x100/0x1a8 [ 18.118427] __asan_memset+0x34/0x78 [ 18.118724] kmalloc_oob_memset_8+0x150/0x2f8 [ 18.118907] kunit_try_run_case+0x170/0x3f0 [ 18.119189] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.119471] kthread+0x328/0x630 [ 18.120970] ret_from_fork+0x10/0x20 [ 18.121029] [ 18.121293] Allocated by task 176: [ 18.121460] kasan_save_stack+0x3c/0x68 [ 18.121510] kasan_save_track+0x20/0x40 [ 18.121737] kasan_save_alloc_info+0x40/0x58 [ 18.122250] __kasan_kmalloc+0xd4/0xd8 [ 18.122367] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.122636] kmalloc_oob_memset_8+0xb0/0x2f8 [ 18.123560] kunit_try_run_case+0x170/0x3f0 [ 18.123610] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.124057] kthread+0x328/0x630 [ 18.124230] ret_from_fork+0x10/0x20 [ 18.124314] [ 18.124336] The buggy address belongs to the object at fff00000c638ed00 [ 18.124336] which belongs to the cache kmalloc-128 of size 128 [ 18.124554] The buggy address is located 113 bytes inside of [ 18.124554] allocated 120-byte region [fff00000c638ed00, fff00000c638ed78) [ 18.125167] [ 18.125224] The buggy address belongs to the physical page: [ 18.125264] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10638e [ 18.125441] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.125703] page_type: f5(slab) [ 18.125886] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.126056] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.126455] page dumped because: kasan: bad access detected [ 18.126634] [ 18.126681] Memory state around the buggy address: [ 18.126751] fff00000c638ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.127119] fff00000c638ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.127275] >fff00000c638ed00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.127315] ^ [ 18.127495] fff00000c638ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.127535] fff00000c638ee00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.127773] ==================================================================
[ 12.044247] ================================================================== [ 12.046116] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.046939] Write of size 8 at addr ffff888103980071 by task kunit_try_catch/193 [ 12.047176] [ 12.048015] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.048176] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.048347] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.048377] Call Trace: [ 12.048409] <TASK> [ 12.048434] dump_stack_lvl+0x73/0xb0 [ 12.048475] print_report+0xd1/0x650 [ 12.048641] ? __virt_addr_valid+0x1db/0x2d0 [ 12.048667] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.048701] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.048722] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.048743] kasan_report+0x141/0x180 [ 12.048763] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.048801] kasan_check_range+0x10c/0x1c0 [ 12.048823] __asan_memset+0x27/0x50 [ 12.048841] kmalloc_oob_memset_8+0x166/0x330 [ 12.048864] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.048885] ? __schedule+0x10cc/0x2b60 [ 12.048907] ? __pfx_read_tsc+0x10/0x10 [ 12.048927] ? ktime_get_ts64+0x86/0x230 [ 12.048951] kunit_try_run_case+0x1a5/0x480 [ 12.048976] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.048996] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.049019] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.049040] ? __kthread_parkme+0x82/0x180 [ 12.049060] ? preempt_count_sub+0x50/0x80 [ 12.049082] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.049103] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.049124] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.049145] kthread+0x337/0x6f0 [ 12.049163] ? trace_preempt_on+0x20/0xc0 [ 12.049526] ? __pfx_kthread+0x10/0x10 [ 12.049557] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.049579] ? calculate_sigpending+0x7b/0xa0 [ 12.049603] ? __pfx_kthread+0x10/0x10 [ 12.049623] ret_from_fork+0x116/0x1d0 [ 12.049642] ? __pfx_kthread+0x10/0x10 [ 12.049662] ret_from_fork_asm+0x1a/0x30 [ 12.049693] </TASK> [ 12.049719] [ 12.062615] Allocated by task 193: [ 12.063071] kasan_save_stack+0x45/0x70 [ 12.063504] kasan_save_track+0x18/0x40 [ 12.063919] kasan_save_alloc_info+0x3b/0x50 [ 12.064506] __kasan_kmalloc+0xb7/0xc0 [ 12.064873] __kmalloc_cache_noprof+0x189/0x420 [ 12.065329] kmalloc_oob_memset_8+0xac/0x330 [ 12.065769] kunit_try_run_case+0x1a5/0x480 [ 12.066385] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.066966] kthread+0x337/0x6f0 [ 12.067338] ret_from_fork+0x116/0x1d0 [ 12.067713] ret_from_fork_asm+0x1a/0x30 [ 12.068081] [ 12.068276] The buggy address belongs to the object at ffff888103980000 [ 12.068276] which belongs to the cache kmalloc-128 of size 128 [ 12.068896] The buggy address is located 113 bytes inside of [ 12.068896] allocated 120-byte region [ffff888103980000, ffff888103980078) [ 12.070076] [ 12.070275] The buggy address belongs to the physical page: [ 12.070837] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103980 [ 12.071581] flags: 0x200000000000000(node=0|zone=2) [ 12.071955] page_type: f5(slab) [ 12.072082] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.072564] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.073143] page dumped because: kasan: bad access detected [ 12.073766] [ 12.073968] Memory state around the buggy address: [ 12.074469] ffff88810397ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.074727] ffff88810397ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.074946] >ffff888103980000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.075159] ^ [ 12.075999] ffff888103980080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.076289] ffff888103980100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.077126] ==================================================================