Date
July 1, 2025, 3:08 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.184795] ================================================================== [ 19.184867] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 19.185338] Read of size 1 at addr fff00000c57eaa18 by task kunit_try_catch/258 [ 19.185424] [ 19.185606] CPU: 0 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.185848] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.186039] Hardware name: linux,dummy-virt (DT) [ 19.186185] Call trace: [ 19.186256] show_stack+0x20/0x38 (C) [ 19.186596] dump_stack_lvl+0x8c/0xd0 [ 19.186752] print_report+0x118/0x608 [ 19.186847] kasan_report+0xdc/0x128 [ 19.187037] __asan_report_load1_noabort+0x20/0x30 [ 19.187115] memcmp+0x198/0x1d8 [ 19.187441] kasan_memcmp+0x16c/0x300 [ 19.187509] kunit_try_run_case+0x170/0x3f0 [ 19.187562] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.187629] kthread+0x328/0x630 [ 19.187738] ret_from_fork+0x10/0x20 [ 19.187803] [ 19.187834] Allocated by task 258: [ 19.187866] kasan_save_stack+0x3c/0x68 [ 19.187911] kasan_save_track+0x20/0x40 [ 19.187951] kasan_save_alloc_info+0x40/0x58 [ 19.187993] __kasan_kmalloc+0xd4/0xd8 [ 19.188031] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.188083] kasan_memcmp+0xbc/0x300 [ 19.188120] kunit_try_run_case+0x170/0x3f0 [ 19.188159] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.188212] kthread+0x328/0x630 [ 19.188256] ret_from_fork+0x10/0x20 [ 19.188300] [ 19.188329] The buggy address belongs to the object at fff00000c57eaa00 [ 19.188329] which belongs to the cache kmalloc-32 of size 32 [ 19.188392] The buggy address is located 0 bytes to the right of [ 19.188392] allocated 24-byte region [fff00000c57eaa00, fff00000c57eaa18) [ 19.188461] [ 19.188495] The buggy address belongs to the physical page: [ 19.188529] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1057ea [ 19.188607] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.188673] page_type: f5(slab) [ 19.188717] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 19.188779] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 19.188825] page dumped because: kasan: bad access detected [ 19.188875] [ 19.188910] Memory state around the buggy address: [ 19.188953] fff00000c57ea900: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 19.189008] fff00000c57ea980: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.189055] >fff00000c57eaa00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.189097] ^ [ 19.189128] fff00000c57eaa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.189173] fff00000c57eab00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.189231] ==================================================================
[ 13.522583] ================================================================== [ 13.523489] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 13.524301] Read of size 1 at addr ffff8881027e5058 by task kunit_try_catch/274 [ 13.524643] [ 13.524746] CPU: 1 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.524796] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.524808] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.524831] Call Trace: [ 13.524845] <TASK> [ 13.524864] dump_stack_lvl+0x73/0xb0 [ 13.524934] print_report+0xd1/0x650 [ 13.524964] ? __virt_addr_valid+0x1db/0x2d0 [ 13.524989] ? memcmp+0x1b4/0x1d0 [ 13.525007] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.525041] ? memcmp+0x1b4/0x1d0 [ 13.525059] kasan_report+0x141/0x180 [ 13.525080] ? memcmp+0x1b4/0x1d0 [ 13.525101] __asan_report_load1_noabort+0x18/0x20 [ 13.525154] memcmp+0x1b4/0x1d0 [ 13.525198] kasan_memcmp+0x18f/0x390 [ 13.525219] ? trace_hardirqs_on+0x37/0xe0 [ 13.525244] ? __pfx_kasan_memcmp+0x10/0x10 [ 13.525264] ? finish_task_switch.isra.0+0x153/0x700 [ 13.525287] ? __switch_to+0x47/0xf50 [ 13.525315] ? __pfx_read_tsc+0x10/0x10 [ 13.525337] ? ktime_get_ts64+0x86/0x230 [ 13.525361] kunit_try_run_case+0x1a5/0x480 [ 13.525386] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.525408] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.525431] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.525453] ? __kthread_parkme+0x82/0x180 [ 13.525474] ? preempt_count_sub+0x50/0x80 [ 13.525495] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.525519] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.525540] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.525562] kthread+0x337/0x6f0 [ 13.525581] ? trace_preempt_on+0x20/0xc0 [ 13.525601] ? __pfx_kthread+0x10/0x10 [ 13.525621] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.525809] ? calculate_sigpending+0x7b/0xa0 [ 13.525843] ? __pfx_kthread+0x10/0x10 [ 13.525865] ret_from_fork+0x116/0x1d0 [ 13.525885] ? __pfx_kthread+0x10/0x10 [ 13.525907] ret_from_fork_asm+0x1a/0x30 [ 13.525937] </TASK> [ 13.525950] [ 13.540591] Allocated by task 274: [ 13.540978] kasan_save_stack+0x45/0x70 [ 13.541483] kasan_save_track+0x18/0x40 [ 13.541623] kasan_save_alloc_info+0x3b/0x50 [ 13.542277] __kasan_kmalloc+0xb7/0xc0 [ 13.542687] __kmalloc_cache_noprof+0x189/0x420 [ 13.543247] kasan_memcmp+0xb7/0x390 [ 13.543692] kunit_try_run_case+0x1a5/0x480 [ 13.543889] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.544450] kthread+0x337/0x6f0 [ 13.544829] ret_from_fork+0x116/0x1d0 [ 13.545155] ret_from_fork_asm+0x1a/0x30 [ 13.545297] [ 13.545370] The buggy address belongs to the object at ffff8881027e5040 [ 13.545370] which belongs to the cache kmalloc-32 of size 32 [ 13.545879] The buggy address is located 0 bytes to the right of [ 13.545879] allocated 24-byte region [ffff8881027e5040, ffff8881027e5058) [ 13.547195] [ 13.547364] The buggy address belongs to the physical page: [ 13.547930] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027e5 [ 13.548633] flags: 0x200000000000000(node=0|zone=2) [ 13.549156] page_type: f5(slab) [ 13.549469] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 13.549928] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 13.550624] page dumped because: kasan: bad access detected [ 13.551046] [ 13.551124] Memory state around the buggy address: [ 13.551283] ffff8881027e4f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.551500] ffff8881027e4f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.551847] >ffff8881027e5000: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 13.552580] ^ [ 13.553221] ffff8881027e5080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.553446] ffff8881027e5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.553676] ==================================================================