Date
June 2, 2025, 2:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.945640] ================================================================== [ 19.946327] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x15c/0x310 [ 19.947417] Write of size 2 at addr fff00000c5cb7277 by task kunit_try_catch/159 [ 19.947855] [ 19.948081] CPU: 0 UID: 0 PID: 159 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 19.948265] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.948323] Hardware name: linux,dummy-virt (DT) [ 19.948387] Call trace: [ 19.948428] dump_backtrace+0x9c/0x128 [ 19.948514] show_stack+0x20/0x38 [ 19.948589] dump_stack_lvl+0x8c/0xd0 [ 19.949183] print_report+0x118/0x5f0 [ 19.949331] kasan_report+0xdc/0x128 [ 19.949423] kasan_check_range+0x100/0x1a8 [ 19.949527] __asan_memset+0x34/0x78 [ 19.949595] kmalloc_oob_memset_2+0x15c/0x310 [ 19.949642] kunit_try_run_case+0x170/0x3f0 [ 19.949692] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.949740] kthread+0x24c/0x2d0 [ 19.949782] ret_from_fork+0x10/0x20 [ 19.949829] [ 19.953466] Allocated by task 159: [ 19.953645] kasan_save_stack+0x3c/0x68 [ 19.953821] kasan_save_track+0x20/0x40 [ 19.953974] kasan_save_alloc_info+0x40/0x58 [ 19.954135] __kasan_kmalloc+0xd4/0xd8 [ 19.954410] __kmalloc_cache_noprof+0x154/0x320 [ 19.955362] kmalloc_oob_memset_2+0xb0/0x310 [ 19.955967] kunit_try_run_case+0x170/0x3f0 [ 19.956530] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.957177] kthread+0x24c/0x2d0 [ 19.958179] ret_from_fork+0x10/0x20 [ 19.958694] [ 19.958967] The buggy address belongs to the object at fff00000c5cb7200 [ 19.958967] which belongs to the cache kmalloc-128 of size 128 [ 19.960215] The buggy address is located 119 bytes inside of [ 19.960215] allocated 120-byte region [fff00000c5cb7200, fff00000c5cb7278) [ 19.961460] [ 19.961777] The buggy address belongs to the physical page: [ 19.962391] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105cb7 [ 19.963451] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.964005] page_type: f5(slab) [ 19.964335] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.964948] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 19.965569] page dumped because: kasan: bad access detected [ 19.965991] [ 19.966228] Memory state around the buggy address: [ 19.966702] fff00000c5cb7100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 19.967211] fff00000c5cb7180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.967910] >fff00000c5cb7200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.968495] ^ [ 19.969147] fff00000c5cb7280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.970036] fff00000c5cb7300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.970542] ==================================================================
[ 12.139731] ================================================================== [ 12.140155] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x167/0x330 [ 12.140871] Write of size 2 at addr ffff88810261c177 by task kunit_try_catch/177 [ 12.141773] [ 12.141966] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 12.142116] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.142141] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.142177] Call Trace: [ 12.142204] <TASK> [ 12.142233] dump_stack_lvl+0x73/0xb0 [ 12.142290] print_report+0xd1/0x640 [ 12.142333] ? __virt_addr_valid+0x1db/0x2d0 [ 12.142373] ? kmalloc_oob_memset_2+0x167/0x330 [ 12.142432] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.142465] ? kmalloc_oob_memset_2+0x167/0x330 [ 12.142497] kasan_report+0x140/0x180 [ 12.142533] ? kmalloc_oob_memset_2+0x167/0x330 [ 12.142579] kasan_check_range+0x10c/0x1c0 [ 12.142609] __asan_memset+0x27/0x50 [ 12.142638] kmalloc_oob_memset_2+0x167/0x330 [ 12.142685] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.142792] ? __schedule+0xc49/0x27a0 [ 12.142832] ? __pfx_read_tsc+0x10/0x10 [ 12.142869] ? ktime_get_ts64+0x84/0x230 [ 12.142921] kunit_try_run_case+0x1a6/0x480 [ 12.142965] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.142990] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.143010] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.143033] ? __kthread_parkme+0x82/0x160 [ 12.143057] ? preempt_count_sub+0x50/0x80 [ 12.143114] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.143134] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.143158] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.143182] kthread+0x257/0x310 [ 12.143199] ? __pfx_kthread+0x10/0x10 [ 12.143217] ret_from_fork+0x41/0x80 [ 12.143235] ? __pfx_kthread+0x10/0x10 [ 12.143252] ret_from_fork_asm+0x1a/0x30 [ 12.143281] </TASK> [ 12.143293] [ 12.151075] Allocated by task 177: [ 12.151373] kasan_save_stack+0x45/0x70 [ 12.151592] kasan_save_track+0x18/0x40 [ 12.151909] kasan_save_alloc_info+0x3b/0x50 [ 12.152152] __kasan_kmalloc+0xb7/0xc0 [ 12.152337] __kmalloc_cache_noprof+0x168/0x350 [ 12.152583] kmalloc_oob_memset_2+0xad/0x330 [ 12.152901] kunit_try_run_case+0x1a6/0x480 [ 12.153249] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.153614] kthread+0x257/0x310 [ 12.153877] ret_from_fork+0x41/0x80 [ 12.154208] ret_from_fork_asm+0x1a/0x30 [ 12.154404] [ 12.154510] The buggy address belongs to the object at ffff88810261c100 [ 12.154510] which belongs to the cache kmalloc-128 of size 128 [ 12.155022] The buggy address is located 119 bytes inside of [ 12.155022] allocated 120-byte region [ffff88810261c100, ffff88810261c178) [ 12.155823] [ 12.156000] The buggy address belongs to the physical page: [ 12.156279] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10261c [ 12.156539] flags: 0x200000000000000(node=0|zone=2) [ 12.156795] page_type: f5(slab) [ 12.157054] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.157543] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 12.158105] page dumped because: kasan: bad access detected [ 12.158360] [ 12.158467] Memory state around the buggy address: [ 12.158665] ffff88810261c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.158905] ffff88810261c080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.159389] >ffff88810261c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.159876] ^ [ 12.160358] ffff88810261c180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.160817] ffff88810261c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.161153] ==================================================================