Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.497598] ================================================================== [ 17.497689] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 17.498081] Write of size 8 at addr fff00000c7800571 by task kunit_try_catch/176 [ 17.498166] [ 17.498208] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.498599] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.498651] Hardware name: linux,dummy-virt (DT) [ 17.498687] Call trace: [ 17.499088] show_stack+0x20/0x38 (C) [ 17.499162] dump_stack_lvl+0x8c/0xd0 [ 17.499211] print_report+0x118/0x608 [ 17.499256] kasan_report+0xdc/0x128 [ 17.499299] kasan_check_range+0x100/0x1a8 [ 17.499345] __asan_memset+0x34/0x78 [ 17.499386] kmalloc_oob_memset_8+0x150/0x2f8 [ 17.499431] kunit_try_run_case+0x170/0x3f0 [ 17.499491] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.499542] kthread+0x328/0x630 [ 17.499582] ret_from_fork+0x10/0x20 [ 17.499630] [ 17.499648] Allocated by task 176: [ 17.499675] kasan_save_stack+0x3c/0x68 [ 17.499715] kasan_save_track+0x20/0x40 [ 17.499751] kasan_save_alloc_info+0x40/0x58 [ 17.499789] __kasan_kmalloc+0xd4/0xd8 [ 17.499824] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.499863] kmalloc_oob_memset_8+0xb0/0x2f8 [ 17.499899] kunit_try_run_case+0x170/0x3f0 [ 17.499937] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.499980] kthread+0x328/0x630 [ 17.500011] ret_from_fork+0x10/0x20 [ 17.500046] [ 17.500065] The buggy address belongs to the object at fff00000c7800500 [ 17.500065] which belongs to the cache kmalloc-128 of size 128 [ 17.500123] The buggy address is located 113 bytes inside of [ 17.500123] allocated 120-byte region [fff00000c7800500, fff00000c7800578) [ 17.500185] [ 17.500205] The buggy address belongs to the physical page: [ 17.500236] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107800 [ 17.500290] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.500339] page_type: f5(slab) [ 17.500380] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.500429] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.500480] page dumped because: kasan: bad access detected [ 17.500510] [ 17.500528] Memory state around the buggy address: [ 17.500561] fff00000c7800400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.500604] fff00000c7800480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.500646] >fff00000c7800500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.500684] ^ [ 17.500722] fff00000c7800580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.500764] fff00000c7800600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.500801] ==================================================================
[ 11.588581] ================================================================== [ 11.589093] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 11.589603] Write of size 8 at addr ffff88810312f171 by task kunit_try_catch/193 [ 11.589966] [ 11.590091] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.590158] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.590184] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.590204] Call Trace: [ 11.590232] <TASK> [ 11.590247] dump_stack_lvl+0x73/0xb0 [ 11.590276] print_report+0xd1/0x650 [ 11.590298] ? __virt_addr_valid+0x1db/0x2d0 [ 11.590319] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.590416] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.590460] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.590482] kasan_report+0x141/0x180 [ 11.590503] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.590528] kasan_check_range+0x10c/0x1c0 [ 11.590551] __asan_memset+0x27/0x50 [ 11.590569] kmalloc_oob_memset_8+0x166/0x330 [ 11.590590] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 11.590612] ? __schedule+0x10cc/0x2b60 [ 11.590633] ? __pfx_read_tsc+0x10/0x10 [ 11.590653] ? ktime_get_ts64+0x86/0x230 [ 11.590676] kunit_try_run_case+0x1a5/0x480 [ 11.590699] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.590720] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.590742] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.590763] ? __kthread_parkme+0x82/0x180 [ 11.590783] ? preempt_count_sub+0x50/0x80 [ 11.590806] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.590830] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.590854] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.590878] kthread+0x337/0x6f0 [ 11.590898] ? trace_preempt_on+0x20/0xc0 [ 11.590920] ? __pfx_kthread+0x10/0x10 [ 11.590940] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.590959] ? calculate_sigpending+0x7b/0xa0 [ 11.590982] ? __pfx_kthread+0x10/0x10 [ 11.591003] ret_from_fork+0x116/0x1d0 [ 11.591020] ? __pfx_kthread+0x10/0x10 [ 11.591102] ret_from_fork_asm+0x1a/0x30 [ 11.591135] </TASK> [ 11.591157] [ 11.599264] Allocated by task 193: [ 11.599509] kasan_save_stack+0x45/0x70 [ 11.599733] kasan_save_track+0x18/0x40 [ 11.599875] kasan_save_alloc_info+0x3b/0x50 [ 11.600222] __kasan_kmalloc+0xb7/0xc0 [ 11.600439] __kmalloc_cache_noprof+0x189/0x420 [ 11.600626] kmalloc_oob_memset_8+0xac/0x330 [ 11.600857] kunit_try_run_case+0x1a5/0x480 [ 11.601104] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.601377] kthread+0x337/0x6f0 [ 11.601572] ret_from_fork+0x116/0x1d0 [ 11.601761] ret_from_fork_asm+0x1a/0x30 [ 11.601960] [ 11.602118] The buggy address belongs to the object at ffff88810312f100 [ 11.602118] which belongs to the cache kmalloc-128 of size 128 [ 11.602597] The buggy address is located 113 bytes inside of [ 11.602597] allocated 120-byte region [ffff88810312f100, ffff88810312f178) [ 11.603140] [ 11.603212] The buggy address belongs to the physical page: [ 11.603609] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10312f [ 11.604093] flags: 0x200000000000000(node=0|zone=2) [ 11.604375] page_type: f5(slab) [ 11.604579] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.605001] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.605661] page dumped because: kasan: bad access detected [ 11.605978] [ 11.606155] Memory state around the buggy address: [ 11.606363] ffff88810312f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.606578] ffff88810312f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.606800] >ffff88810312f100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.607132] ^ [ 11.607515] ffff88810312f180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.607849] ffff88810312f200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.608282] ==================================================================