Date
June 17, 2025, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.868539] ================================================================== [ 16.868679] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 16.868743] Write of size 2 at addr fff00000c748a777 by task kunit_try_catch/181 [ 16.868793] [ 16.868837] CPU: 1 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT [ 16.868936] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.868962] Hardware name: linux,dummy-virt (DT) [ 16.869233] Call trace: [ 16.869273] show_stack+0x20/0x38 (C) [ 16.869338] dump_stack_lvl+0x8c/0xd0 [ 16.869679] print_report+0x118/0x608 [ 16.869845] kasan_report+0xdc/0x128 [ 16.869920] kasan_check_range+0x100/0x1a8 [ 16.869980] __asan_memset+0x34/0x78 [ 16.870033] kmalloc_oob_memset_2+0x150/0x2f8 [ 16.870079] kunit_try_run_case+0x170/0x3f0 [ 16.870128] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.870179] kthread+0x328/0x630 [ 16.870242] ret_from_fork+0x10/0x20 [ 16.870302] [ 16.870321] Allocated by task 181: [ 16.870350] kasan_save_stack+0x3c/0x68 [ 16.870391] kasan_save_track+0x20/0x40 [ 16.870428] kasan_save_alloc_info+0x40/0x58 [ 16.870473] __kasan_kmalloc+0xd4/0xd8 [ 16.870525] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.870565] kmalloc_oob_memset_2+0xb0/0x2f8 [ 16.870602] kunit_try_run_case+0x170/0x3f0 [ 16.870639] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.870681] kthread+0x328/0x630 [ 16.870713] ret_from_fork+0x10/0x20 [ 16.870748] [ 16.870767] The buggy address belongs to the object at fff00000c748a700 [ 16.870767] which belongs to the cache kmalloc-128 of size 128 [ 16.870824] The buggy address is located 119 bytes inside of [ 16.870824] allocated 120-byte region [fff00000c748a700, fff00000c748a778) [ 16.870893] [ 16.870914] The buggy address belongs to the physical page: [ 16.871617] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10748a [ 16.871843] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.871973] page_type: f5(slab) [ 16.872138] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.872375] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.872484] page dumped because: kasan: bad access detected [ 16.872778] [ 16.872981] Memory state around the buggy address: [ 16.873087] fff00000c748a600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.873173] fff00000c748a680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.873571] >fff00000c748a700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.873699] ^ [ 16.873777] fff00000c748a780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.873987] fff00000c748a800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.874078] ==================================================================
[ 18.039986] ================================================================== [ 18.041062] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 18.041642] Write of size 2 at addr ffff888100ab8377 by task kunit_try_catch/199 [ 18.042252] [ 18.042503] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT(voluntary) [ 18.042801] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.042917] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.043180] Call Trace: [ 18.043226] <TASK> [ 18.043276] dump_stack_lvl+0x73/0xb0 [ 18.043363] print_report+0xd1/0x650 [ 18.043437] ? __virt_addr_valid+0x1db/0x2d0 [ 18.043513] ? kmalloc_oob_memset_2+0x166/0x330 [ 18.043689] ? kasan_complete_mode_report_info+0x2a/0x200 [ 18.043724] ? kmalloc_oob_memset_2+0x166/0x330 [ 18.043757] kasan_report+0x141/0x180 [ 18.043788] ? kmalloc_oob_memset_2+0x166/0x330 [ 18.043824] kasan_check_range+0x10c/0x1c0 [ 18.043884] __asan_memset+0x27/0x50 [ 18.043911] kmalloc_oob_memset_2+0x166/0x330 [ 18.043941] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 18.043974] ? __schedule+0x10cc/0x2b60 [ 18.044003] ? __pfx_read_tsc+0x10/0x10 [ 18.044032] ? ktime_get_ts64+0x86/0x230 [ 18.044066] kunit_try_run_case+0x1a5/0x480 [ 18.044100] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.044131] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 18.044159] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.044194] ? __kthread_parkme+0x82/0x180 [ 18.044247] ? preempt_count_sub+0x50/0x80 [ 18.044324] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.044404] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.044452] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.044485] kthread+0x337/0x6f0 [ 18.044511] ? trace_preempt_on+0x20/0xc0 [ 18.044546] ? __pfx_kthread+0x10/0x10 [ 18.044574] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.044608] ? calculate_sigpending+0x7b/0xa0 [ 18.044641] ? __pfx_kthread+0x10/0x10 [ 18.044669] ret_from_fork+0x116/0x1d0 [ 18.044694] ? __pfx_kthread+0x10/0x10 [ 18.044721] ret_from_fork_asm+0x1a/0x30 [ 18.044762] </TASK> [ 18.044778] [ 18.061691] Allocated by task 199: [ 18.063013] kasan_save_stack+0x45/0x70 [ 18.063629] kasan_save_track+0x18/0x40 [ 18.064047] kasan_save_alloc_info+0x3b/0x50 [ 18.064668] __kasan_kmalloc+0xb7/0xc0 [ 18.065149] __kmalloc_cache_noprof+0x189/0x420 [ 18.065804] kmalloc_oob_memset_2+0xac/0x330 [ 18.066187] kunit_try_run_case+0x1a5/0x480 [ 18.067083] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.067777] kthread+0x337/0x6f0 [ 18.068082] ret_from_fork+0x116/0x1d0 [ 18.068664] ret_from_fork_asm+0x1a/0x30 [ 18.069138] [ 18.069487] The buggy address belongs to the object at ffff888100ab8300 [ 18.069487] which belongs to the cache kmalloc-128 of size 128 [ 18.070675] The buggy address is located 119 bytes inside of [ 18.070675] allocated 120-byte region [ffff888100ab8300, ffff888100ab8378) [ 18.071811] [ 18.072031] The buggy address belongs to the physical page: [ 18.072795] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100ab8 [ 18.073619] flags: 0x200000000000000(node=0|zone=2) [ 18.074150] page_type: f5(slab) [ 18.074627] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 18.076061] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.076665] page dumped because: kasan: bad access detected [ 18.077309] [ 18.077523] Memory state around the buggy address: [ 18.077904] ffff888100ab8200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.078612] ffff888100ab8280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.079186] >ffff888100ab8300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.079951] ^ [ 18.080455] ffff888100ab8380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.080888] ffff888100ab8400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.081750] ==================================================================