Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.924055] ================================================================== [ 17.924341] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 17.924406] Write of size 4 at addr fff00000c59e4075 by task kunit_try_catch/176 [ 17.924483] [ 17.924532] CPU: 0 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 17.924750] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.924787] Hardware name: linux,dummy-virt (DT) [ 17.924858] Call trace: [ 17.924908] show_stack+0x20/0x38 (C) [ 17.925169] dump_stack_lvl+0x8c/0xd0 [ 17.925250] print_report+0x118/0x5d0 [ 17.925295] kasan_report+0xdc/0x128 [ 17.925634] kasan_check_range+0x100/0x1a8 [ 17.925789] __asan_memset+0x34/0x78 [ 17.925891] kmalloc_oob_memset_4+0x150/0x300 [ 17.925978] kunit_try_run_case+0x170/0x3f0 [ 17.926079] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.926132] kthread+0x328/0x630 [ 17.926177] ret_from_fork+0x10/0x20 [ 17.926235] [ 17.926254] Allocated by task 176: [ 17.926611] kasan_save_stack+0x3c/0x68 [ 17.926698] kasan_save_track+0x20/0x40 [ 17.926874] kasan_save_alloc_info+0x40/0x58 [ 17.926962] __kasan_kmalloc+0xd4/0xd8 [ 17.927115] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.927188] kmalloc_oob_memset_4+0xb0/0x300 [ 17.927393] kunit_try_run_case+0x170/0x3f0 [ 17.927573] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.927677] kthread+0x328/0x630 [ 17.927759] ret_from_fork+0x10/0x20 [ 17.927891] [ 17.927981] The buggy address belongs to the object at fff00000c59e4000 [ 17.927981] which belongs to the cache kmalloc-128 of size 128 [ 17.928130] The buggy address is located 117 bytes inside of [ 17.928130] allocated 120-byte region [fff00000c59e4000, fff00000c59e4078) [ 17.928370] [ 17.928519] The buggy address belongs to the physical page: [ 17.928627] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059e4 [ 17.928704] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.928871] page_type: f5(slab) [ 17.928952] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.929093] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.929135] page dumped because: kasan: bad access detected [ 17.929339] [ 17.929429] Memory state around the buggy address: [ 17.929600] fff00000c59e3f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.929735] fff00000c59e3f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.929818] >fff00000c59e4000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.929882] ^ [ 17.930034] fff00000c59e4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.930099] fff00000c59e4100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.930143] ==================================================================
[ 11.107347] ================================================================== [ 11.107996] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 11.108302] Write of size 4 at addr ffff888102f2ac75 by task kunit_try_catch/193 [ 11.108592] [ 11.108705] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 11.108751] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.108763] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.108783] Call Trace: [ 11.108796] <TASK> [ 11.108814] dump_stack_lvl+0x73/0xb0 [ 11.108840] print_report+0xd1/0x610 [ 11.108862] ? __virt_addr_valid+0x1db/0x2d0 [ 11.108894] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.108915] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.108937] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.108958] kasan_report+0x141/0x180 [ 11.108980] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.109005] kasan_check_range+0x10c/0x1c0 [ 11.109025] __asan_memset+0x27/0x50 [ 11.109044] kmalloc_oob_memset_4+0x166/0x330 [ 11.109066] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 11.109088] ? __schedule+0x10cc/0x2b60 [ 11.109110] ? __pfx_read_tsc+0x10/0x10 [ 11.109136] ? ktime_get_ts64+0x86/0x230 [ 11.109162] kunit_try_run_case+0x1a5/0x480 [ 11.109184] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.109201] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.109225] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.109248] ? __kthread_parkme+0x82/0x180 [ 11.109269] ? preempt_count_sub+0x50/0x80 [ 11.109294] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.109313] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.109335] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.109357] kthread+0x337/0x6f0 [ 11.109372] ? trace_preempt_on+0x20/0xc0 [ 11.109395] ? __pfx_kthread+0x10/0x10 [ 11.109412] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.109433] ? calculate_sigpending+0x7b/0xa0 [ 11.109454] ? __pfx_kthread+0x10/0x10 [ 11.109471] ret_from_fork+0x41/0x80 [ 11.109490] ? __pfx_kthread+0x10/0x10 [ 11.109507] ret_from_fork_asm+0x1a/0x30 [ 11.109540] </TASK> [ 11.109550] [ 11.120176] Allocated by task 193: [ 11.120355] kasan_save_stack+0x45/0x70 [ 11.120543] kasan_save_track+0x18/0x40 [ 11.120718] kasan_save_alloc_info+0x3b/0x50 [ 11.121238] __kasan_kmalloc+0xb7/0xc0 [ 11.121534] __kmalloc_cache_noprof+0x189/0x420 [ 11.121965] kmalloc_oob_memset_4+0xac/0x330 [ 11.122308] kunit_try_run_case+0x1a5/0x480 [ 11.122710] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.123243] kthread+0x337/0x6f0 [ 11.123544] ret_from_fork+0x41/0x80 [ 11.123921] ret_from_fork_asm+0x1a/0x30 [ 11.124125] [ 11.124218] The buggy address belongs to the object at ffff888102f2ac00 [ 11.124218] which belongs to the cache kmalloc-128 of size 128 [ 11.124713] The buggy address is located 117 bytes inside of [ 11.124713] allocated 120-byte region [ffff888102f2ac00, ffff888102f2ac78) [ 11.125641] [ 11.125866] The buggy address belongs to the physical page: [ 11.126334] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f2a [ 11.126993] flags: 0x200000000000000(node=0|zone=2) [ 11.127214] page_type: f5(slab) [ 11.127370] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.127677] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.128302] page dumped because: kasan: bad access detected [ 11.128672] [ 11.128911] Memory state around the buggy address: [ 11.129309] ffff888102f2ab00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.129847] ffff888102f2ab80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.130161] >ffff888102f2ac00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.130443] ^ [ 11.130980] ffff888102f2ac80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.131481] ffff888102f2ad00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.132013] ==================================================================