Date
May 26, 2025, 9:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.621670] ================================================================== [ 17.621803] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 17.621925] Write of size 16 at addr fff00000c78c2169 by task kunit_try_catch/178 [ 17.622035] [ 17.622114] CPU: 0 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT [ 17.622302] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.623080] Hardware name: linux,dummy-virt (DT) [ 17.623215] Call trace: [ 17.623266] show_stack+0x20/0x38 (C) [ 17.623402] dump_stack_lvl+0x8c/0xd0 [ 17.623513] print_report+0x118/0x608 [ 17.623599] kasan_report+0xdc/0x128 [ 17.623678] kasan_check_range+0x100/0x1a8 [ 17.623768] __asan_memset+0x34/0x78 [ 17.623939] kmalloc_oob_memset_16+0x150/0x2f8 [ 17.624178] kunit_try_run_case+0x170/0x3f0 [ 17.624374] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.624967] kthread+0x328/0x630 [ 17.625371] ret_from_fork+0x10/0x20 [ 17.625597] [ 17.625666] Allocated by task 178: [ 17.625831] kasan_save_stack+0x3c/0x68 [ 17.625963] kasan_save_track+0x20/0x40 [ 17.626159] kasan_save_alloc_info+0x40/0x58 [ 17.626242] __kasan_kmalloc+0xd4/0xd8 [ 17.626484] __kmalloc_cache_noprof+0x15c/0x3c0 [ 17.626716] kmalloc_oob_memset_16+0xb0/0x2f8 [ 17.626964] kunit_try_run_case+0x170/0x3f0 [ 17.627084] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.627174] kthread+0x328/0x630 [ 17.627394] ret_from_fork+0x10/0x20 [ 17.627484] [ 17.627728] The buggy address belongs to the object at fff00000c78c2100 [ 17.627728] which belongs to the cache kmalloc-128 of size 128 [ 17.627861] The buggy address is located 105 bytes inside of [ 17.627861] allocated 120-byte region [fff00000c78c2100, fff00000c78c2178) [ 17.627981] [ 17.628022] The buggy address belongs to the physical page: [ 17.628081] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078c2 [ 17.628233] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.628376] page_type: f5(slab) [ 17.628630] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.628977] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.629070] page dumped because: kasan: bad access detected [ 17.629197] [ 17.629370] Memory state around the buggy address: [ 17.629436] fff00000c78c2000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.629524] fff00000c78c2080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.629781] >fff00000c78c2100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.630003] ^ [ 17.630216] fff00000c78c2180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.630347] fff00000c78c2200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.630421] ==================================================================
[ 11.155589] ================================================================== [ 11.155988] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 11.156230] Write of size 16 at addr ffff888102826169 by task kunit_try_catch/196 [ 11.157160] [ 11.157415] CPU: 0 UID: 0 PID: 196 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT(voluntary) [ 11.157464] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.157476] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.157498] Call Trace: [ 11.157512] <TASK> [ 11.157528] dump_stack_lvl+0x73/0xb0 [ 11.157558] print_report+0xd1/0x650 [ 11.157581] ? __virt_addr_valid+0x1db/0x2d0 [ 11.157604] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.157625] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.157730] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.157759] kasan_report+0x141/0x180 [ 11.157782] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.157808] kasan_check_range+0x10c/0x1c0 [ 11.157831] __asan_memset+0x27/0x50 [ 11.157851] kmalloc_oob_memset_16+0x166/0x330 [ 11.157873] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 11.157895] ? __schedule+0x10cc/0x2b60 [ 11.157920] ? __pfx_read_tsc+0x10/0x10 [ 11.157941] ? ktime_get_ts64+0x86/0x230 [ 11.157965] kunit_try_run_case+0x1a5/0x480 [ 11.158114] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.158143] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.158170] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.158195] ? __kthread_parkme+0x82/0x180 [ 11.158215] ? preempt_count_sub+0x50/0x80 [ 11.158239] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.158259] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.158283] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.158307] kthread+0x337/0x6f0 [ 11.158326] ? trace_preempt_on+0x20/0xc0 [ 11.158348] ? __pfx_kthread+0x10/0x10 [ 11.158368] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.158404] ? calculate_sigpending+0x7b/0xa0 [ 11.158428] ? __pfx_kthread+0x10/0x10 [ 11.158448] ret_from_fork+0x116/0x1d0 [ 11.158466] ? __pfx_kthread+0x10/0x10 [ 11.158486] ret_from_fork_asm+0x1a/0x30 [ 11.158516] </TASK> [ 11.158527] [ 11.168908] Allocated by task 196: [ 11.169102] kasan_save_stack+0x45/0x70 [ 11.169332] kasan_save_track+0x18/0x40 [ 11.169546] kasan_save_alloc_info+0x3b/0x50 [ 11.169785] __kasan_kmalloc+0xb7/0xc0 [ 11.170016] __kmalloc_cache_noprof+0x189/0x420 [ 11.170220] kmalloc_oob_memset_16+0xac/0x330 [ 11.170451] kunit_try_run_case+0x1a5/0x480 [ 11.170660] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.170898] kthread+0x337/0x6f0 [ 11.171041] ret_from_fork+0x116/0x1d0 [ 11.171237] ret_from_fork_asm+0x1a/0x30 [ 11.171486] [ 11.171628] The buggy address belongs to the object at ffff888102826100 [ 11.171628] which belongs to the cache kmalloc-128 of size 128 [ 11.172197] The buggy address is located 105 bytes inside of [ 11.172197] allocated 120-byte region [ffff888102826100, ffff888102826178) [ 11.172573] [ 11.172672] The buggy address belongs to the physical page: [ 11.172981] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102826 [ 11.173639] flags: 0x200000000000000(node=0|zone=2) [ 11.173873] page_type: f5(slab) [ 11.174048] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.174353] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.174780] page dumped because: kasan: bad access detected [ 11.174955] [ 11.175024] Memory state around the buggy address: [ 11.175343] ffff888102826000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.175751] ffff888102826080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.176119] >ffff888102826100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.176875] ^ [ 11.177764] ffff888102826180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.178457] ffff888102826200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.179319] ==================================================================