Date
June 19, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.536678] ================================================================== [ 30.537033] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 30.537308] Write of size 4 at addr fff00000c6466a75 by task kunit_try_catch/185 [ 30.538693] [ 30.538780] CPU: 1 UID: 0 PID: 185 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT [ 30.539029] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.539112] Hardware name: linux,dummy-virt (DT) [ 30.539287] Call trace: [ 30.539377] show_stack+0x20/0x38 (C) [ 30.539532] dump_stack_lvl+0x8c/0xd0 [ 30.540043] print_report+0x118/0x608 [ 30.540191] kasan_report+0xdc/0x128 [ 30.540433] kasan_check_range+0x100/0x1a8 [ 30.540861] __asan_memset+0x34/0x78 [ 30.541126] kmalloc_oob_memset_4+0x150/0x300 [ 30.541384] kunit_try_run_case+0x170/0x3f0 [ 30.541645] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.541937] kthread+0x328/0x630 [ 30.542034] ret_from_fork+0x10/0x20 [ 30.542158] [ 30.542211] Allocated by task 185: [ 30.542359] kasan_save_stack+0x3c/0x68 [ 30.542653] kasan_save_track+0x20/0x40 [ 30.542759] kasan_save_alloc_info+0x40/0x58 [ 30.542941] __kasan_kmalloc+0xd4/0xd8 [ 30.543119] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.543373] kmalloc_oob_memset_4+0xb0/0x300 [ 30.543568] kunit_try_run_case+0x170/0x3f0 [ 30.543756] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.543946] kthread+0x328/0x630 [ 30.544312] ret_from_fork+0x10/0x20 [ 30.544419] [ 30.544475] The buggy address belongs to the object at fff00000c6466a00 [ 30.544475] which belongs to the cache kmalloc-128 of size 128 [ 30.544779] The buggy address is located 117 bytes inside of [ 30.544779] allocated 120-byte region [fff00000c6466a00, fff00000c6466a78) [ 30.545143] [ 30.545267] The buggy address belongs to the physical page: [ 30.545448] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106466 [ 30.545897] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.546032] page_type: f5(slab) [ 30.546253] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000100 dead000000000122 [ 30.546484] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.546814] page dumped because: kasan: bad access detected [ 30.546921] [ 30.546980] Memory state around the buggy address: [ 30.547060] fff00000c6466900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.547273] fff00000c6466980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.547465] >fff00000c6466a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 30.547579] ^ [ 30.547752] fff00000c6466a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.547863] fff00000c6466b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.547974] ==================================================================
[ 27.001644] ================================================================== [ 27.002240] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 27.002909] Write of size 4 at addr ffff888103259075 by task kunit_try_catch/203 [ 27.003368] [ 27.003582] CPU: 0 UID: 0 PID: 203 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT(voluntary) [ 27.003712] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.003740] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.003790] Call Trace: [ 27.003823] <TASK> [ 27.003864] dump_stack_lvl+0x73/0xb0 [ 27.003937] print_report+0xd1/0x650 [ 27.003989] ? __virt_addr_valid+0x1db/0x2d0 [ 27.004055] ? kmalloc_oob_memset_4+0x166/0x330 [ 27.004121] ? kasan_complete_mode_report_info+0x2a/0x200 [ 27.004174] ? kmalloc_oob_memset_4+0x166/0x330 [ 27.004243] kasan_report+0x141/0x180 [ 27.004290] ? kmalloc_oob_memset_4+0x166/0x330 [ 27.004341] kasan_check_range+0x10c/0x1c0 [ 27.004390] __asan_memset+0x27/0x50 [ 27.004433] kmalloc_oob_memset_4+0x166/0x330 [ 27.004475] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 27.004521] ? __schedule+0x207f/0x2b60 [ 27.004566] ? __pfx_read_tsc+0x10/0x10 [ 27.004611] ? ktime_get_ts64+0x86/0x230 [ 27.004662] kunit_try_run_case+0x1a5/0x480 [ 27.004709] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.004780] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.004826] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.004875] ? __kthread_parkme+0x82/0x180 [ 27.004918] ? preempt_count_sub+0x50/0x80 [ 27.004968] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.005019] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.005061] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.005086] kthread+0x337/0x6f0 [ 27.005132] ? trace_preempt_on+0x20/0xc0 [ 27.005160] ? __pfx_kthread+0x10/0x10 [ 27.005182] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.005205] ? calculate_sigpending+0x7b/0xa0 [ 27.005233] ? __pfx_kthread+0x10/0x10 [ 27.005257] ret_from_fork+0x116/0x1d0 [ 27.005279] ? __pfx_kthread+0x10/0x10 [ 27.005301] ret_from_fork_asm+0x1a/0x30 [ 27.005334] </TASK> [ 27.005347] [ 27.016825] Allocated by task 203: [ 27.017438] kasan_save_stack+0x45/0x70 [ 27.017657] kasan_save_track+0x18/0x40 [ 27.017759] kasan_save_alloc_info+0x3b/0x50 [ 27.017865] __kasan_kmalloc+0xb7/0xc0 [ 27.018496] __kmalloc_cache_noprof+0x189/0x420 [ 27.019217] kmalloc_oob_memset_4+0xac/0x330 [ 27.019549] kunit_try_run_case+0x1a5/0x480 [ 27.019844] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.020158] kthread+0x337/0x6f0 [ 27.020407] ret_from_fork+0x116/0x1d0 [ 27.020674] ret_from_fork_asm+0x1a/0x30 [ 27.020917] [ 27.021020] The buggy address belongs to the object at ffff888103259000 [ 27.021020] which belongs to the cache kmalloc-128 of size 128 [ 27.022161] The buggy address is located 117 bytes inside of [ 27.022161] allocated 120-byte region [ffff888103259000, ffff888103259078) [ 27.023117] [ 27.023246] The buggy address belongs to the physical page: [ 27.023636] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103259 [ 27.023954] flags: 0x200000000000000(node=0|zone=2) [ 27.024119] page_type: f5(slab) [ 27.024226] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 27.024385] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 27.024535] page dumped because: kasan: bad access detected [ 27.024649] [ 27.024697] Memory state around the buggy address: [ 27.024805] ffff888103258f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.025975] ffff888103258f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.026740] >ffff888103259000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 27.027655] ^ [ 27.028167] ffff888103259080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.028725] ffff888103259100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.029459] ==================================================================