Date
May 23, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 26.783436] ================================================================== [ 26.783660] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 26.783829] Read of size 1 at addr fff00000c639f000 by task kunit_try_catch/142 [ 26.784299] [ 26.784441] CPU: 0 UID: 0 PID: 142 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 26.785327] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.785519] Hardware name: linux,dummy-virt (DT) [ 26.785619] Call trace: [ 26.785687] show_stack+0x20/0x38 (C) [ 26.786018] dump_stack_lvl+0x8c/0xd0 [ 26.786661] print_report+0x118/0x608 [ 26.786827] kasan_report+0xdc/0x128 [ 26.786961] __asan_report_load1_noabort+0x20/0x30 [ 26.787108] kmalloc_node_oob_right+0x2f4/0x330 [ 26.787256] kunit_try_run_case+0x170/0x3f0 [ 26.787410] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.787592] kthread+0x328/0x630 [ 26.787727] ret_from_fork+0x10/0x20 [ 26.787872] [ 26.788558] Allocated by task 142: [ 26.788800] kasan_save_stack+0x3c/0x68 [ 26.789044] kasan_save_track+0x20/0x40 [ 26.789151] kasan_save_alloc_info+0x40/0x58 [ 26.789241] __kasan_kmalloc+0xd4/0xd8 [ 26.789903] __kmalloc_cache_node_noprof+0x168/0x3d0 [ 26.790585] kmalloc_node_oob_right+0xbc/0x330 [ 26.791019] kunit_try_run_case+0x170/0x3f0 [ 26.791832] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.792248] kthread+0x328/0x630 [ 26.792511] ret_from_fork+0x10/0x20 [ 26.792604] [ 26.792690] The buggy address belongs to the object at fff00000c639e000 [ 26.792690] which belongs to the cache kmalloc-4k of size 4096 [ 26.792854] The buggy address is located 0 bytes to the right of [ 26.792854] allocated 4096-byte region [fff00000c639e000, fff00000c639f000) [ 26.793115] [ 26.793201] The buggy address belongs to the physical page: [ 26.793532] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106398 [ 26.794780] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 26.795899] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 26.796127] page_type: f5(slab) [ 26.796279] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 26.796575] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 26.796774] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 26.796923] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 26.797042] head: 0bfffe0000000003 ffffc1ffc318e601 00000000ffffffff 00000000ffffffff [ 26.797150] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 26.798377] page dumped because: kasan: bad access detected [ 26.798583] [ 26.798640] Memory state around the buggy address: [ 26.798760] fff00000c639ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.798885] fff00000c639ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.799224] >fff00000c639f000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.799342] ^ [ 26.799464] fff00000c639f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.799615] fff00000c639f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.799887] ==================================================================
[ 12.039839] ================================================================== [ 12.041165] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 12.041855] Read of size 1 at addr ffff8881029b7000 by task kunit_try_catch/159 [ 12.042776] [ 12.043018] CPU: 0 UID: 0 PID: 159 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 12.043068] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.043081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.043103] Call Trace: [ 12.043115] <TASK> [ 12.043132] dump_stack_lvl+0x73/0xb0 [ 12.043160] print_report+0xd1/0x650 [ 12.043182] ? __virt_addr_valid+0x1db/0x2d0 [ 12.043204] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.043224] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.043246] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.043266] kasan_report+0x141/0x180 [ 12.043302] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.043327] __asan_report_load1_noabort+0x18/0x20 [ 12.043347] kmalloc_node_oob_right+0x369/0x3c0 [ 12.043368] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 12.043388] ? __schedule+0x10cc/0x2b30 [ 12.043410] ? __pfx_read_tsc+0x10/0x10 [ 12.043429] ? ktime_get_ts64+0x86/0x230 [ 12.043455] kunit_try_run_case+0x1a5/0x480 [ 12.043479] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.043500] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.043522] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.043544] ? __kthread_parkme+0x82/0x180 [ 12.043565] ? preempt_count_sub+0x50/0x80 [ 12.043590] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.043613] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.043634] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.043656] kthread+0x337/0x6f0 [ 12.043672] ? trace_preempt_on+0x20/0xc0 [ 12.043695] ? __pfx_kthread+0x10/0x10 [ 12.043713] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.043733] ? calculate_sigpending+0x7b/0xa0 [ 12.043754] ? __pfx_kthread+0x10/0x10 [ 12.043772] ret_from_fork+0x41/0x80 [ 12.043792] ? __pfx_kthread+0x10/0x10 [ 12.043809] ret_from_fork_asm+0x1a/0x30 [ 12.043840] </TASK> [ 12.043851] [ 12.057242] Allocated by task 159: [ 12.057659] kasan_save_stack+0x45/0x70 [ 12.057814] kasan_save_track+0x18/0x40 [ 12.058101] kasan_save_alloc_info+0x3b/0x50 [ 12.058511] __kasan_kmalloc+0xb7/0xc0 [ 12.058913] __kmalloc_cache_node_noprof+0x188/0x420 [ 12.059495] kmalloc_node_oob_right+0xab/0x3c0 [ 12.059843] kunit_try_run_case+0x1a5/0x480 [ 12.060381] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.060687] kthread+0x337/0x6f0 [ 12.060812] ret_from_fork+0x41/0x80 [ 12.061003] ret_from_fork_asm+0x1a/0x30 [ 12.061377] [ 12.061539] The buggy address belongs to the object at ffff8881029b6000 [ 12.061539] which belongs to the cache kmalloc-4k of size 4096 [ 12.062576] The buggy address is located 0 bytes to the right of [ 12.062576] allocated 4096-byte region [ffff8881029b6000, ffff8881029b7000) [ 12.063147] [ 12.063327] The buggy address belongs to the physical page: [ 12.063910] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029b0 [ 12.065091] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.065841] flags: 0x200000000000040(head|node=0|zone=2) [ 12.066507] page_type: f5(slab) [ 12.066786] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.067343] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.067698] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.068110] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.068974] head: 0200000000000003 ffffea00040a6c01 00000000ffffffff 00000000ffffffff [ 12.069692] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 12.070463] page dumped because: kasan: bad access detected [ 12.070861] [ 12.070935] Memory state around the buggy address: [ 12.071512] ffff8881029b6f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.072306] ffff8881029b6f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.072732] >ffff8881029b7000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.073043] ^ [ 12.073365] ffff8881029b7080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.074048] ffff8881029b7100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.074726] ==================================================================