Date
June 2, 2025, 2:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.794641] ================================================================== [ 20.795213] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 20.795577] Read of size 1 at addr fff00000c3f60218 by task kunit_try_catch/247 [ 20.795834] [ 20.795966] CPU: 0 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 20.796073] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.796106] Hardware name: linux,dummy-virt (DT) [ 20.796148] Call trace: [ 20.796444] show_stack+0x20/0x38 (C) [ 20.796542] dump_stack_lvl+0x8c/0xd0 [ 20.796606] print_report+0x118/0x608 [ 20.796668] kasan_report+0xdc/0x128 [ 20.796724] __asan_report_load1_noabort+0x20/0x30 [ 20.796781] memcmp+0x198/0x1d8 [ 20.796832] kasan_memcmp+0x16c/0x300 [ 20.796886] kunit_try_run_case+0x170/0x3f0 [ 20.796945] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.797007] kthread+0x318/0x620 [ 20.797063] ret_from_fork+0x10/0x20 [ 20.797125] [ 20.801177] Allocated by task 247: [ 20.801401] kasan_save_stack+0x3c/0x68 [ 20.801785] kasan_save_track+0x20/0x40 [ 20.802172] kasan_save_alloc_info+0x40/0x58 [ 20.802677] __kasan_kmalloc+0xd4/0xd8 [ 20.803444] __kmalloc_cache_noprof+0x16c/0x3c0 [ 20.803740] kasan_memcmp+0xbc/0x300 [ 20.804015] kunit_try_run_case+0x170/0x3f0 [ 20.804372] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.804732] kthread+0x318/0x620 [ 20.805044] ret_from_fork+0x10/0x20 [ 20.805262] [ 20.805492] The buggy address belongs to the object at fff00000c3f60200 [ 20.805492] which belongs to the cache kmalloc-32 of size 32 [ 20.806244] The buggy address is located 0 bytes to the right of [ 20.806244] allocated 24-byte region [fff00000c3f60200, fff00000c3f60218) [ 20.807225] [ 20.807383] The buggy address belongs to the physical page: [ 20.807765] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f60 [ 20.808205] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.808768] page_type: f5(slab) [ 20.809105] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 20.809589] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 20.810058] page dumped because: kasan: bad access detected [ 20.810466] [ 20.811130] Memory state around the buggy address: [ 20.811361] fff00000c3f60100: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.811963] fff00000c3f60180: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 20.812371] >fff00000c3f60200: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.812842] ^ [ 20.813134] fff00000c3f60280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.813517] fff00000c3f60300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.813869] ==================================================================
[ 14.558786] ================================================================== [ 14.559390] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 14.559816] Read of size 1 at addr ffff888102a33fd8 by task kunit_try_catch/265 [ 14.560300] [ 14.560664] CPU: 0 UID: 0 PID: 265 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 14.560835] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.560851] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.560872] Call Trace: [ 14.560884] <TASK> [ 14.560899] dump_stack_lvl+0x73/0xb0 [ 14.560929] print_report+0xd1/0x650 [ 14.560953] ? __virt_addr_valid+0x1db/0x2d0 [ 14.560978] ? memcmp+0x1b4/0x1d0 [ 14.561000] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.561041] ? memcmp+0x1b4/0x1d0 [ 14.561063] kasan_report+0x140/0x180 [ 14.561088] ? memcmp+0x1b4/0x1d0 [ 14.561114] __asan_report_load1_noabort+0x18/0x20 [ 14.561140] memcmp+0x1b4/0x1d0 [ 14.561164] kasan_memcmp+0x190/0x390 [ 14.561188] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.561211] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 14.561244] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.561271] kunit_try_run_case+0x1a6/0x480 [ 14.561296] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.561320] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 14.561346] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.561373] ? __kthread_parkme+0x82/0x160 [ 14.561397] ? preempt_count_sub+0x50/0x80 [ 14.561424] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.561450] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.561478] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.561506] kthread+0x324/0x6e0 [ 14.561530] ? trace_preempt_on+0x20/0xc0 [ 14.561579] ? __pfx_kthread+0x10/0x10 [ 14.561605] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.561629] ? calculate_sigpending+0x7b/0xa0 [ 14.561654] ? __pfx_kthread+0x10/0x10 [ 14.561679] ret_from_fork+0x41/0x80 [ 14.561702] ? __pfx_kthread+0x10/0x10 [ 14.561727] ret_from_fork_asm+0x1a/0x30 [ 14.561766] </TASK> [ 14.561775] [ 14.571534] Allocated by task 265: [ 14.572160] kasan_save_stack+0x45/0x70 [ 14.572459] kasan_save_track+0x18/0x40 [ 14.572819] kasan_save_alloc_info+0x3b/0x50 [ 14.573160] __kasan_kmalloc+0xb7/0xc0 [ 14.573457] __kmalloc_cache_noprof+0x18a/0x420 [ 14.573858] kasan_memcmp+0xb8/0x390 [ 14.574164] kunit_try_run_case+0x1a6/0x480 [ 14.574456] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.574892] kthread+0x324/0x6e0 [ 14.575179] ret_from_fork+0x41/0x80 [ 14.575448] ret_from_fork_asm+0x1a/0x30 [ 14.575847] [ 14.575944] The buggy address belongs to the object at ffff888102a33fc0 [ 14.575944] which belongs to the cache kmalloc-32 of size 32 [ 14.576416] The buggy address is located 0 bytes to the right of [ 14.576416] allocated 24-byte region [ffff888102a33fc0, ffff888102a33fd8) [ 14.576905] [ 14.577004] The buggy address belongs to the physical page: [ 14.577867] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a33 [ 14.578353] flags: 0x200000000000000(node=0|zone=2) [ 14.578769] page_type: f5(slab) [ 14.579050] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.579482] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.579973] page dumped because: kasan: bad access detected [ 14.580336] [ 14.580624] Memory state around the buggy address: [ 14.580937] ffff888102a33e80: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 14.581345] ffff888102a33f00: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 14.581997] >ffff888102a33f80: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.582400] ^ [ 14.582760] ffff888102a34000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.583146] ffff888102a34080: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 14.583700] ==================================================================