Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.629730] ================================================================== [ 24.629926] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 24.630110] Read of size 1 at addr fff00000c78760d8 by task kunit_try_catch/257 [ 24.630246] [ 24.630351] CPU: 1 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 24.630578] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.630761] Hardware name: linux,dummy-virt (DT) [ 24.630869] Call trace: [ 24.630930] show_stack+0x20/0x38 (C) [ 24.631086] dump_stack_lvl+0x8c/0xd0 [ 24.631214] print_report+0x118/0x608 [ 24.631359] kasan_report+0xdc/0x128 [ 24.631496] __asan_report_load1_noabort+0x20/0x30 [ 24.631640] memcmp+0x198/0x1d8 [ 24.631759] kasan_memcmp+0x16c/0x300 [ 24.631959] kunit_try_run_case+0x170/0x3f0 [ 24.632087] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.632283] kthread+0x328/0x630 [ 24.632431] ret_from_fork+0x10/0x20 [ 24.632547] [ 24.632590] Allocated by task 257: [ 24.632662] kasan_save_stack+0x3c/0x68 [ 24.632768] kasan_save_track+0x20/0x40 [ 24.632952] kasan_save_alloc_info+0x40/0x58 [ 24.633052] __kasan_kmalloc+0xd4/0xd8 [ 24.633174] __kmalloc_cache_noprof+0x15c/0x3c0 [ 24.633285] kasan_memcmp+0xbc/0x300 [ 24.633374] kunit_try_run_case+0x170/0x3f0 [ 24.633494] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.633665] kthread+0x328/0x630 [ 24.633754] ret_from_fork+0x10/0x20 [ 24.633842] [ 24.633895] The buggy address belongs to the object at fff00000c78760c0 [ 24.633895] which belongs to the cache kmalloc-32 of size 32 [ 24.634120] The buggy address is located 0 bytes to the right of [ 24.634120] allocated 24-byte region [fff00000c78760c0, fff00000c78760d8) [ 24.634408] [ 24.634477] The buggy address belongs to the physical page: [ 24.634590] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107876 [ 24.634747] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.634971] page_type: f5(slab) [ 24.635122] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 24.635236] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 24.635591] page dumped because: kasan: bad access detected [ 24.635698] [ 24.635753] Memory state around the buggy address: [ 24.635811] fff00000c7875f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.635866] fff00000c7876000: 00 00 00 fc fc fc fc fc 00 00 00 03 fc fc fc fc [ 24.635918] >fff00000c7876080: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 24.635964] ^ [ 24.636010] fff00000c7876100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.636059] fff00000c7876180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.636105] ==================================================================
[ 12.745330] ================================================================== [ 12.746563] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 12.747499] Read of size 1 at addr ffff888102fa3ed8 by task kunit_try_catch/274 [ 12.748704] [ 12.749058] CPU: 0 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 12.749141] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.749156] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.749178] Call Trace: [ 12.749192] <TASK> [ 12.749208] dump_stack_lvl+0x73/0xb0 [ 12.749235] print_report+0xd1/0x650 [ 12.749261] ? __virt_addr_valid+0x1db/0x2d0 [ 12.749284] ? memcmp+0x1b4/0x1d0 [ 12.749303] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.749328] ? memcmp+0x1b4/0x1d0 [ 12.749349] kasan_report+0x141/0x180 [ 12.749371] ? memcmp+0x1b4/0x1d0 [ 12.749396] __asan_report_load1_noabort+0x18/0x20 [ 12.749417] memcmp+0x1b4/0x1d0 [ 12.749438] kasan_memcmp+0x18f/0x390 [ 12.749459] ? trace_hardirqs_on+0x37/0xe0 [ 12.749483] ? __pfx_kasan_memcmp+0x10/0x10 [ 12.749504] ? finish_task_switch.isra.0+0x153/0x700 [ 12.749527] ? __switch_to+0x47/0xf50 [ 12.749555] ? __pfx_read_tsc+0x10/0x10 [ 12.749577] ? ktime_get_ts64+0x86/0x230 [ 12.749602] kunit_try_run_case+0x1a5/0x480 [ 12.749639] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.749659] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.749685] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.749710] ? __kthread_parkme+0x82/0x180 [ 12.749730] ? preempt_count_sub+0x50/0x80 [ 12.749835] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.749860] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.749886] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.749911] kthread+0x337/0x6f0 [ 12.749931] ? trace_preempt_on+0x20/0xc0 [ 12.749953] ? __pfx_kthread+0x10/0x10 [ 12.749974] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.749998] ? calculate_sigpending+0x7b/0xa0 [ 12.750023] ? __pfx_kthread+0x10/0x10 [ 12.750044] ret_from_fork+0x116/0x1d0 [ 12.750063] ? __pfx_kthread+0x10/0x10 [ 12.750084] ret_from_fork_asm+0x1a/0x30 [ 12.750116] </TASK> [ 12.750126] [ 12.760522] Allocated by task 274: [ 12.760726] kasan_save_stack+0x45/0x70 [ 12.761132] kasan_save_track+0x18/0x40 [ 12.761337] kasan_save_alloc_info+0x3b/0x50 [ 12.761526] __kasan_kmalloc+0xb7/0xc0 [ 12.761733] __kmalloc_cache_noprof+0x189/0x420 [ 12.762431] kasan_memcmp+0xb7/0x390 [ 12.762707] kunit_try_run_case+0x1a5/0x480 [ 12.763206] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.763620] kthread+0x337/0x6f0 [ 12.764065] ret_from_fork+0x116/0x1d0 [ 12.764274] ret_from_fork_asm+0x1a/0x30 [ 12.764580] [ 12.764699] The buggy address belongs to the object at ffff888102fa3ec0 [ 12.764699] which belongs to the cache kmalloc-32 of size 32 [ 12.765593] The buggy address is located 0 bytes to the right of [ 12.765593] allocated 24-byte region [ffff888102fa3ec0, ffff888102fa3ed8) [ 12.766341] [ 12.766429] The buggy address belongs to the physical page: [ 12.766707] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102fa3 [ 12.767272] flags: 0x200000000000000(node=0|zone=2) [ 12.767521] page_type: f5(slab) [ 12.767747] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 12.768194] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 12.768820] page dumped because: kasan: bad access detected [ 12.769302] [ 12.769382] Memory state around the buggy address: [ 12.769544] ffff888102fa3d80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 12.769790] ffff888102fa3e00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 12.770569] >ffff888102fa3e80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 12.770914] ^ [ 12.771407] ffff888102fa3f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.771719] ffff888102fa3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.772382] ==================================================================