Date
July 5, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.069723] ================================================================== [ 18.069782] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 18.069892] Write of size 2 at addr fff00000c3ec0277 by task kunit_try_catch/172 [ 18.069947] [ 18.069984] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.070096] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.070122] Hardware name: linux,dummy-virt (DT) [ 18.070215] Call trace: [ 18.070248] show_stack+0x20/0x38 (C) [ 18.070521] dump_stack_lvl+0x8c/0xd0 [ 18.070609] print_report+0x118/0x608 [ 18.070674] kasan_report+0xdc/0x128 [ 18.070774] kasan_check_range+0x100/0x1a8 [ 18.070840] __asan_memset+0x34/0x78 [ 18.070907] kmalloc_oob_memset_2+0x150/0x2f8 [ 18.071046] kunit_try_run_case+0x170/0x3f0 [ 18.071092] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.071141] kthread+0x328/0x630 [ 18.071204] ret_from_fork+0x10/0x20 [ 18.071505] [ 18.071543] Allocated by task 172: [ 18.071611] kasan_save_stack+0x3c/0x68 [ 18.071654] kasan_save_track+0x20/0x40 [ 18.071777] kasan_save_alloc_info+0x40/0x58 [ 18.071824] __kasan_kmalloc+0xd4/0xd8 [ 18.072033] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.072087] kmalloc_oob_memset_2+0xb0/0x2f8 [ 18.072574] kunit_try_run_case+0x170/0x3f0 [ 18.072694] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.072858] kthread+0x328/0x630 [ 18.073006] ret_from_fork+0x10/0x20 [ 18.073129] [ 18.073254] The buggy address belongs to the object at fff00000c3ec0200 [ 18.073254] which belongs to the cache kmalloc-128 of size 128 [ 18.073330] The buggy address is located 119 bytes inside of [ 18.073330] allocated 120-byte region [fff00000c3ec0200, fff00000c3ec0278) [ 18.073391] [ 18.073410] The buggy address belongs to the physical page: [ 18.073440] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ec0 [ 18.073490] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.073839] page_type: f5(slab) [ 18.073889] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.073957] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.073995] page dumped because: kasan: bad access detected [ 18.074322] [ 18.074416] Memory state around the buggy address: [ 18.074506] fff00000c3ec0100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.074630] fff00000c3ec0180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.074699] >fff00000c3ec0200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.074810] ^ [ 18.074925] fff00000c3ec0280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.074966] fff00000c3ec0300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.075326] ==================================================================
[ 13.648963] ================================================================== [ 13.649556] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 13.649936] Write of size 2 at addr ffff8881029f9077 by task kunit_try_catch/190 [ 13.650324] [ 13.650537] CPU: 1 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.650592] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.650606] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.650631] Call Trace: [ 13.650647] <TASK> [ 13.650669] dump_stack_lvl+0x73/0xb0 [ 13.650707] print_report+0xd1/0x650 [ 13.650733] ? __virt_addr_valid+0x1db/0x2d0 [ 13.650761] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.650800] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.650826] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.650852] kasan_report+0x141/0x180 [ 13.650877] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.650907] kasan_check_range+0x10c/0x1c0 [ 13.650934] __asan_memset+0x27/0x50 [ 13.650957] kmalloc_oob_memset_2+0x166/0x330 [ 13.650982] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 13.651008] ? __schedule+0x10cc/0x2b60 [ 13.651035] ? __pfx_read_tsc+0x10/0x10 [ 13.651060] ? ktime_get_ts64+0x86/0x230 [ 13.651088] kunit_try_run_case+0x1a5/0x480 [ 13.651117] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.651142] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.651170] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.651197] ? __kthread_parkme+0x82/0x180 [ 13.651402] ? preempt_count_sub+0x50/0x80 [ 13.651432] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.651460] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.651488] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.651514] kthread+0x337/0x6f0 [ 13.651538] ? trace_preempt_on+0x20/0xc0 [ 13.651569] ? __pfx_kthread+0x10/0x10 [ 13.651595] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.651622] ? calculate_sigpending+0x7b/0xa0 [ 13.651650] ? __pfx_kthread+0x10/0x10 [ 13.651674] ret_from_fork+0x116/0x1d0 [ 13.651698] ? __pfx_kthread+0x10/0x10 [ 13.651722] ret_from_fork_asm+0x1a/0x30 [ 13.651758] </TASK> [ 13.651772] [ 13.664507] Allocated by task 190: [ 13.664743] kasan_save_stack+0x45/0x70 [ 13.664983] kasan_save_track+0x18/0x40 [ 13.665629] kasan_save_alloc_info+0x3b/0x50 [ 13.665904] __kasan_kmalloc+0xb7/0xc0 [ 13.666362] __kmalloc_cache_noprof+0x189/0x420 [ 13.666639] kmalloc_oob_memset_2+0xac/0x330 [ 13.666881] kunit_try_run_case+0x1a5/0x480 [ 13.667098] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.667812] kthread+0x337/0x6f0 [ 13.668016] ret_from_fork+0x116/0x1d0 [ 13.668644] ret_from_fork_asm+0x1a/0x30 [ 13.668888] [ 13.668995] The buggy address belongs to the object at ffff8881029f9000 [ 13.668995] which belongs to the cache kmalloc-128 of size 128 [ 13.669802] The buggy address is located 119 bytes inside of [ 13.669802] allocated 120-byte region [ffff8881029f9000, ffff8881029f9078) [ 13.670721] [ 13.670853] The buggy address belongs to the physical page: [ 13.671308] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f9 [ 13.671708] flags: 0x200000000000000(node=0|zone=2) [ 13.671982] page_type: f5(slab) [ 13.672640] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.673026] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.673520] page dumped because: kasan: bad access detected [ 13.673808] [ 13.673894] Memory state around the buggy address: [ 13.674157] ffff8881029f8f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.674546] ffff8881029f8f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.674852] >ffff8881029f9000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.675203] ^ [ 13.675532] ffff8881029f9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.676275] ffff8881029f9100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.676769] ==================================================================