Date
June 23, 2025, 1:39 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 28.054452] ================================================================== [ 28.054663] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 28.055001] Read of size 1 at addr fff00000c7050f58 by task kunit_try_catch/259 [ 28.055169] [ 28.055300] CPU: 0 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT [ 28.055599] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.055915] Hardware name: linux,dummy-virt (DT) [ 28.056007] Call trace: [ 28.056068] show_stack+0x20/0x38 (C) [ 28.056243] dump_stack_lvl+0x8c/0xd0 [ 28.056362] print_report+0x118/0x608 [ 28.056496] kasan_report+0xdc/0x128 [ 28.056619] __asan_report_load1_noabort+0x20/0x30 [ 28.056940] memcmp+0x198/0x1d8 [ 28.057103] kasan_memcmp+0x16c/0x300 [ 28.057245] kunit_try_run_case+0x170/0x3f0 [ 28.057596] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.057779] kthread+0x328/0x630 [ 28.057916] ret_from_fork+0x10/0x20 [ 28.058031] [ 28.058106] Allocated by task 259: [ 28.058310] kasan_save_stack+0x3c/0x68 [ 28.058969] kasan_save_track+0x20/0x40 [ 28.059266] kasan_save_alloc_info+0x40/0x58 [ 28.059446] __kasan_kmalloc+0xd4/0xd8 [ 28.059546] __kmalloc_cache_noprof+0x16c/0x3c0 [ 28.059664] kasan_memcmp+0xbc/0x300 [ 28.060036] kunit_try_run_case+0x170/0x3f0 [ 28.060351] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.060509] kthread+0x328/0x630 [ 28.060598] ret_from_fork+0x10/0x20 [ 28.060680] [ 28.060743] The buggy address belongs to the object at fff00000c7050f40 [ 28.060743] which belongs to the cache kmalloc-32 of size 32 [ 28.061270] The buggy address is located 0 bytes to the right of [ 28.061270] allocated 24-byte region [fff00000c7050f40, fff00000c7050f58) [ 28.061367] [ 28.061418] The buggy address belongs to the physical page: [ 28.061519] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107050 [ 28.061684] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.061807] page_type: f5(slab) [ 28.062013] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 28.062167] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 28.062322] page dumped because: kasan: bad access detected [ 28.062826] [ 28.062900] Memory state around the buggy address: [ 28.063091] fff00000c7050e00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.063209] fff00000c7050e80: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 28.063326] >fff00000c7050f00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.064833] ^ [ 28.065037] fff00000c7050f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.065149] fff00000c7051000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 28.065254] ==================================================================
[ 20.059150] ================================================================== [ 20.060544] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 20.061460] Read of size 1 at addr ffff88810a08ab58 by task kunit_try_catch/278 [ 20.062567] [ 20.062800] CPU: 1 UID: 0 PID: 278 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT(voluntary) [ 20.062924] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.062963] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 20.063019] Call Trace: [ 20.063057] <TASK> [ 20.063232] dump_stack_lvl+0x73/0xb0 [ 20.063313] print_report+0xd1/0x650 [ 20.063423] ? __virt_addr_valid+0x1db/0x2d0 [ 20.063473] ? memcmp+0x1b4/0x1d0 [ 20.063504] ? kasan_complete_mode_report_info+0x2a/0x200 [ 20.063537] ? memcmp+0x1b4/0x1d0 [ 20.063563] kasan_report+0x141/0x180 [ 20.063597] ? memcmp+0x1b4/0x1d0 [ 20.063694] __asan_report_load1_noabort+0x18/0x20 [ 20.063755] memcmp+0x1b4/0x1d0 [ 20.063787] kasan_memcmp+0x18f/0x390 [ 20.063817] ? trace_hardirqs_on+0x37/0xe0 [ 20.063854] ? __pfx_kasan_memcmp+0x10/0x10 [ 20.063884] ? finish_task_switch.isra.0+0x153/0x700 [ 20.063917] ? __switch_to+0x5d9/0xf60 [ 20.063947] ? dequeue_task_fair+0x166/0x4e0 [ 20.063985] ? __pfx_read_tsc+0x10/0x10 [ 20.064015] ? ktime_get_ts64+0x86/0x230 [ 20.064050] kunit_try_run_case+0x1a5/0x480 [ 20.064086] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.064119] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 20.064154] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 20.064187] ? __kthread_parkme+0x82/0x180 [ 20.064230] ? preempt_count_sub+0x50/0x80 [ 20.064285] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.064322] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 20.064356] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 20.064390] kthread+0x337/0x6f0 [ 20.064414] ? trace_preempt_on+0x20/0xc0 [ 20.064446] ? __pfx_kthread+0x10/0x10 [ 20.064471] ? _raw_spin_unlock_irq+0x47/0x80 [ 20.064503] ? calculate_sigpending+0x7b/0xa0 [ 20.064535] ? __pfx_kthread+0x10/0x10 [ 20.064560] ret_from_fork+0x41/0x80 [ 20.064591] ? __pfx_kthread+0x10/0x10 [ 20.064666] ret_from_fork_asm+0x1a/0x30 [ 20.064764] </TASK> [ 20.064805] [ 20.087076] Allocated by task 278: [ 20.087873] kasan_save_stack+0x45/0x70 [ 20.088675] kasan_save_track+0x18/0x40 [ 20.089285] kasan_save_alloc_info+0x3b/0x50 [ 20.089729] __kasan_kmalloc+0xb7/0xc0 [ 20.090123] __kmalloc_cache_noprof+0x189/0x420 [ 20.091019] kasan_memcmp+0xb7/0x390 [ 20.091332] kunit_try_run_case+0x1a5/0x480 [ 20.091917] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 20.092412] kthread+0x337/0x6f0 [ 20.093118] ret_from_fork+0x41/0x80 [ 20.093520] ret_from_fork_asm+0x1a/0x30 [ 20.093933] [ 20.094173] The buggy address belongs to the object at ffff88810a08ab40 [ 20.094173] which belongs to the cache kmalloc-32 of size 32 [ 20.095066] The buggy address is located 0 bytes to the right of [ 20.095066] allocated 24-byte region [ffff88810a08ab40, ffff88810a08ab58) [ 20.096124] [ 20.096355] The buggy address belongs to the physical page: [ 20.096996] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a08a [ 20.097777] flags: 0x200000000000000(node=0|zone=2) [ 20.098294] page_type: f5(slab) [ 20.098741] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 20.099345] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 20.100376] page dumped because: kasan: bad access detected [ 20.101028] [ 20.101256] Memory state around the buggy address: [ 20.101900] ffff88810a08aa00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 20.102533] ffff88810a08aa80: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 20.103219] >ffff88810a08ab00: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.103808] ^ [ 20.104262] ffff88810a08ab80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.104994] ffff88810a08ac00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.105518] ==================================================================