Date
July 9, 2025, 12:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.705392] ================================================================== [ 19.705470] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 19.705577] Write of size 8 at addr fff00000c64b5071 by task kunit_try_catch/177 [ 19.705629] [ 19.705660] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.705769] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.705795] Hardware name: linux,dummy-virt (DT) [ 19.705964] Call trace: [ 19.706063] show_stack+0x20/0x38 (C) [ 19.706174] dump_stack_lvl+0x8c/0xd0 [ 19.706231] print_report+0x118/0x608 [ 19.706338] kasan_report+0xdc/0x128 [ 19.706384] kasan_check_range+0x100/0x1a8 [ 19.706440] __asan_memset+0x34/0x78 [ 19.706512] kmalloc_oob_memset_8+0x150/0x2f8 [ 19.706559] kunit_try_run_case+0x170/0x3f0 [ 19.706803] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.706925] kthread+0x328/0x630 [ 19.706971] ret_from_fork+0x10/0x20 [ 19.707091] [ 19.707143] Allocated by task 177: [ 19.707180] kasan_save_stack+0x3c/0x68 [ 19.707238] kasan_save_track+0x20/0x40 [ 19.707339] kasan_save_alloc_info+0x40/0x58 [ 19.707383] __kasan_kmalloc+0xd4/0xd8 [ 19.707429] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.707604] kmalloc_oob_memset_8+0xb0/0x2f8 [ 19.707712] kunit_try_run_case+0x170/0x3f0 [ 19.707776] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.707885] kthread+0x328/0x630 [ 19.707932] ret_from_fork+0x10/0x20 [ 19.707978] [ 19.708007] The buggy address belongs to the object at fff00000c64b5000 [ 19.708007] which belongs to the cache kmalloc-128 of size 128 [ 19.708190] The buggy address is located 113 bytes inside of [ 19.708190] allocated 120-byte region [fff00000c64b5000, fff00000c64b5078) [ 19.708278] [ 19.708371] The buggy address belongs to the physical page: [ 19.708418] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1064b5 [ 19.708626] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.708787] page_type: f5(slab) [ 19.708918] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.708986] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.709189] page dumped because: kasan: bad access detected [ 19.709255] [ 19.709292] Memory state around the buggy address: [ 19.709420] fff00000c64b4f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.710009] fff00000c64b4f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.710185] >fff00000c64b5000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.710318] ^ [ 19.710373] fff00000c64b5080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.710494] fff00000c64b5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.710554] ==================================================================
[ 12.742355] ================================================================== [ 12.742774] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.743039] Write of size 8 at addr ffff888102a9ec71 by task kunit_try_catch/193 [ 12.743282] [ 12.743376] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.743461] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.743502] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.743523] Call Trace: [ 12.743535] <TASK> [ 12.743554] dump_stack_lvl+0x73/0xb0 [ 12.743723] print_report+0xd1/0x650 [ 12.744037] ? __virt_addr_valid+0x1db/0x2d0 [ 12.744067] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.744271] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.744298] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.744321] kasan_report+0x141/0x180 [ 12.744344] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.744370] kasan_check_range+0x10c/0x1c0 [ 12.744394] __asan_memset+0x27/0x50 [ 12.744413] kmalloc_oob_memset_8+0x166/0x330 [ 12.744435] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.744458] ? __schedule+0x10cc/0x2b60 [ 12.744481] ? __pfx_read_tsc+0x10/0x10 [ 12.744504] ? ktime_get_ts64+0x86/0x230 [ 12.744530] kunit_try_run_case+0x1a5/0x480 [ 12.744556] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.744578] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.744603] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.744627] ? __kthread_parkme+0x82/0x180 [ 12.744648] ? preempt_count_sub+0x50/0x80 [ 12.744673] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.744696] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.744720] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.744745] kthread+0x337/0x6f0 [ 12.744763] ? trace_preempt_on+0x20/0xc0 [ 12.744787] ? __pfx_kthread+0x10/0x10 [ 12.744806] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.744827] ? calculate_sigpending+0x7b/0xa0 [ 12.744851] ? __pfx_kthread+0x10/0x10 [ 12.744872] ret_from_fork+0x116/0x1d0 [ 12.744889] ? __pfx_kthread+0x10/0x10 [ 12.744910] ret_from_fork_asm+0x1a/0x30 [ 12.744966] </TASK> [ 12.744977] [ 12.756763] Allocated by task 193: [ 12.757233] kasan_save_stack+0x45/0x70 [ 12.757434] kasan_save_track+0x18/0x40 [ 12.757568] kasan_save_alloc_info+0x3b/0x50 [ 12.757790] __kasan_kmalloc+0xb7/0xc0 [ 12.758399] __kmalloc_cache_noprof+0x189/0x420 [ 12.758634] kmalloc_oob_memset_8+0xac/0x330 [ 12.758942] kunit_try_run_case+0x1a5/0x480 [ 12.759315] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.759662] kthread+0x337/0x6f0 [ 12.759921] ret_from_fork+0x116/0x1d0 [ 12.760365] ret_from_fork_asm+0x1a/0x30 [ 12.760609] [ 12.760684] The buggy address belongs to the object at ffff888102a9ec00 [ 12.760684] which belongs to the cache kmalloc-128 of size 128 [ 12.761577] The buggy address is located 113 bytes inside of [ 12.761577] allocated 120-byte region [ffff888102a9ec00, ffff888102a9ec78) [ 12.762419] [ 12.762615] The buggy address belongs to the physical page: [ 12.763028] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a9e [ 12.763586] flags: 0x200000000000000(node=0|zone=2) [ 12.763935] page_type: f5(slab) [ 12.764281] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.764709] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.765253] page dumped because: kasan: bad access detected [ 12.765580] [ 12.765680] Memory state around the buggy address: [ 12.766140] ffff888102a9eb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.766612] ffff888102a9eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.767171] >ffff888102a9ec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.767519] ^ [ 12.767911] ffff888102a9ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.768509] ffff888102a9ed00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.768911] ==================================================================