Date
July 15, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.584659] ================================================================== [ 15.584731] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 15.584791] Write of size 8 at addr fff00000c592cc71 by task kunit_try_catch/177 [ 15.584840] [ 15.584878] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.587134] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.587418] Hardware name: linux,dummy-virt (DT) [ 15.588146] Call trace: [ 15.588188] show_stack+0x20/0x38 (C) [ 15.588252] dump_stack_lvl+0x8c/0xd0 [ 15.588301] print_report+0x118/0x5d0 [ 15.588347] kasan_report+0xdc/0x128 [ 15.589345] kasan_check_range+0x100/0x1a8 [ 15.589487] __asan_memset+0x34/0x78 [ 15.590344] kmalloc_oob_memset_8+0x150/0x2f8 [ 15.590819] kunit_try_run_case+0x170/0x3f0 [ 15.590995] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.591048] kthread+0x328/0x630 [ 15.591091] ret_from_fork+0x10/0x20 [ 15.592072] [ 15.592175] Allocated by task 177: [ 15.592292] kasan_save_stack+0x3c/0x68 [ 15.593079] kasan_save_track+0x20/0x40 [ 15.593320] kasan_save_alloc_info+0x40/0x58 [ 15.593369] __kasan_kmalloc+0xd4/0xd8 [ 15.593405] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.593444] kmalloc_oob_memset_8+0xb0/0x2f8 [ 15.594236] kunit_try_run_case+0x170/0x3f0 [ 15.594612] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.594831] kthread+0x328/0x630 [ 15.594972] ret_from_fork+0x10/0x20 [ 15.595272] [ 15.595344] The buggy address belongs to the object at fff00000c592cc00 [ 15.595344] which belongs to the cache kmalloc-128 of size 128 [ 15.595406] The buggy address is located 113 bytes inside of [ 15.595406] allocated 120-byte region [fff00000c592cc00, fff00000c592cc78) [ 15.595469] [ 15.595489] The buggy address belongs to the physical page: [ 15.595520] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10592c [ 15.597038] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.597100] page_type: f5(slab) [ 15.597510] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.598194] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.598680] page dumped because: kasan: bad access detected [ 15.599047] [ 15.599067] Memory state around the buggy address: [ 15.599101] fff00000c592cb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.599147] fff00000c592cb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.599206] >fff00000c592cc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.599244] ^ [ 15.600419] fff00000c592cc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.600650] fff00000c592cd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.600691] ==================================================================
[ 12.646511] ================================================================== [ 12.647096] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.647343] Write of size 8 at addr ffff888102afc271 by task kunit_try_catch/193 [ 12.647580] [ 12.647665] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.647707] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.647719] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.647739] Call Trace: [ 12.647750] <TASK> [ 12.647775] dump_stack_lvl+0x73/0xb0 [ 12.647805] print_report+0xd1/0x610 [ 12.647830] ? __virt_addr_valid+0x1db/0x2d0 [ 12.647854] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.647876] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.647901] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.647923] kasan_report+0x141/0x180 [ 12.647945] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.647972] kasan_check_range+0x10c/0x1c0 [ 12.647995] __asan_memset+0x27/0x50 [ 12.648015] kmalloc_oob_memset_8+0x166/0x330 [ 12.648572] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.648606] ? __schedule+0x10cc/0x2b60 [ 12.648630] ? __pfx_read_tsc+0x10/0x10 [ 12.648651] ? ktime_get_ts64+0x86/0x230 [ 12.648676] kunit_try_run_case+0x1a5/0x480 [ 12.648702] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.648724] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.648749] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.648784] ? __kthread_parkme+0x82/0x180 [ 12.648804] ? preempt_count_sub+0x50/0x80 [ 12.648828] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.648852] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.648877] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.648902] kthread+0x337/0x6f0 [ 12.648921] ? trace_preempt_on+0x20/0xc0 [ 12.648945] ? __pfx_kthread+0x10/0x10 [ 12.648965] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.648987] ? calculate_sigpending+0x7b/0xa0 [ 12.649011] ? __pfx_kthread+0x10/0x10 [ 12.649032] ret_from_fork+0x116/0x1d0 [ 12.649051] ? __pfx_kthread+0x10/0x10 [ 12.649071] ret_from_fork_asm+0x1a/0x30 [ 12.649102] </TASK> [ 12.649112] [ 12.665546] Allocated by task 193: [ 12.665950] kasan_save_stack+0x45/0x70 [ 12.666359] kasan_save_track+0x18/0x40 [ 12.666967] kasan_save_alloc_info+0x3b/0x50 [ 12.667443] __kasan_kmalloc+0xb7/0xc0 [ 12.667582] __kmalloc_cache_noprof+0x189/0x420 [ 12.668231] kmalloc_oob_memset_8+0xac/0x330 [ 12.668765] kunit_try_run_case+0x1a5/0x480 [ 12.669221] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.669452] kthread+0x337/0x6f0 [ 12.669599] ret_from_fork+0x116/0x1d0 [ 12.670015] ret_from_fork_asm+0x1a/0x30 [ 12.670458] [ 12.670663] The buggy address belongs to the object at ffff888102afc200 [ 12.670663] which belongs to the cache kmalloc-128 of size 128 [ 12.671176] The buggy address is located 113 bytes inside of [ 12.671176] allocated 120-byte region [ffff888102afc200, ffff888102afc278) [ 12.672274] [ 12.672582] The buggy address belongs to the physical page: [ 12.673281] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102afc [ 12.674236] flags: 0x200000000000000(node=0|zone=2) [ 12.674968] page_type: f5(slab) [ 12.675448] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.676031] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.676580] page dumped because: kasan: bad access detected [ 12.677086] [ 12.677164] Memory state around the buggy address: [ 12.677338] ffff888102afc100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.677556] ffff888102afc180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.677803] >ffff888102afc200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.678401] ^ [ 12.679106] ffff888102afc280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.680029] ffff888102afc300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.680839] ==================================================================