Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.049103] ================================================================== [ 20.049297] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270 [ 20.049388] Read of size 1 at addr ffff8000809d7c2a by task kunit_try_catch/251 [ 20.049441] [ 20.049628] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 20.049817] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.049898] Hardware name: linux,dummy-virt (DT) [ 20.050052] Call trace: [ 20.050131] show_stack+0x20/0x38 (C) [ 20.050213] dump_stack_lvl+0x8c/0xd0 [ 20.050288] print_report+0x310/0x5d0 [ 20.050570] kasan_report+0xdc/0x128 [ 20.050744] __asan_report_load1_noabort+0x20/0x30 [ 20.050822] kasan_stack_oob+0x238/0x270 [ 20.050925] kunit_try_run_case+0x170/0x3f0 [ 20.050996] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.051300] kthread+0x328/0x630 [ 20.051438] ret_from_fork+0x10/0x20 [ 20.051559] [ 20.051699] The buggy address belongs to stack of task kunit_try_catch/251 [ 20.052090] and is located at offset 138 in frame: [ 20.052251] kasan_stack_oob+0x0/0x270 [ 20.054673] [ 20.054876] This frame has 4 objects: [ 20.055278] [48, 49) '__assertion' [ 20.055328] [64, 72) 'array' [ 20.055361] [96, 112) '__assertion' [ 20.055631] [128, 138) 'stack_array' [ 20.055803] [ 20.055866] The buggy address ffff8000809d7c2a belongs to a vmalloc virtual mapping [ 20.055988] The buggy address belongs to the physical page: [ 20.056036] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106627 [ 20.056094] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.056526] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.056641] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.056730] page dumped because: kasan: bad access detected [ 20.056788] [ 20.056941] Memory state around the buggy address: [ 20.057082] ffff8000809d7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.057150] ffff8000809d7b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 [ 20.057254] >ffff8000809d7c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00 [ 20.057324] ^ [ 20.057473] ffff8000809d7c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 [ 20.057553] ffff8000809d7d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 20.057769] ==================================================================
[ 12.787303] ================================================================== [ 12.787945] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b5/0x300 [ 12.788261] Read of size 1 at addr ffff888103a0fd02 by task kunit_try_catch/268 [ 12.788543] [ 12.788649] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 12.788691] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.788702] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.788722] Call Trace: [ 12.788733] <TASK> [ 12.788747] dump_stack_lvl+0x73/0xb0 [ 12.788768] print_report+0xd1/0x610 [ 12.788790] ? __virt_addr_valid+0x1db/0x2d0 [ 12.788810] ? kasan_stack_oob+0x2b5/0x300 [ 12.788830] ? kasan_addr_to_slab+0x11/0xa0 [ 12.788849] ? kasan_stack_oob+0x2b5/0x300 [ 12.788868] kasan_report+0x141/0x180 [ 12.789040] ? kasan_stack_oob+0x2b5/0x300 [ 12.789070] __asan_report_load1_noabort+0x18/0x20 [ 12.789091] kasan_stack_oob+0x2b5/0x300 [ 12.789111] ? __pfx_kasan_stack_oob+0x10/0x10 [ 12.789138] ? finish_task_switch.isra.0+0x153/0x700 [ 12.789162] ? __switch_to+0x5d9/0xf60 [ 12.789186] ? dequeue_task_fair+0x156/0x4e0 [ 12.789212] ? __schedule+0x10cc/0x2b60 [ 12.789236] ? __pfx_read_tsc+0x10/0x10 [ 12.789255] ? ktime_get_ts64+0x86/0x230 [ 12.789278] kunit_try_run_case+0x1a5/0x480 [ 12.789299] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.789317] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.789341] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.789364] ? __kthread_parkme+0x82/0x180 [ 12.789385] ? preempt_count_sub+0x50/0x80 [ 12.789408] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.789427] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.789450] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.789473] kthread+0x337/0x6f0 [ 12.789489] ? trace_preempt_on+0x20/0xc0 [ 12.789511] ? __pfx_kthread+0x10/0x10 [ 12.789528] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.789549] ? calculate_sigpending+0x7b/0xa0 [ 12.789570] ? __pfx_kthread+0x10/0x10 [ 12.789587] ret_from_fork+0x41/0x80 [ 12.789606] ? __pfx_kthread+0x10/0x10 [ 12.789623] ret_from_fork_asm+0x1a/0x30 [ 12.789652] </TASK> [ 12.789662] [ 12.797491] The buggy address belongs to stack of task kunit_try_catch/268 [ 12.797966] and is located at offset 138 in frame: [ 12.798132] kasan_stack_oob+0x0/0x300 [ 12.798443] [ 12.798552] This frame has 4 objects: [ 12.799061] [48, 49) '__assertion' [ 12.799087] [64, 72) 'array' [ 12.799269] [96, 112) '__assertion' [ 12.799440] [128, 138) 'stack_array' [ 12.799586] [ 12.799944] The buggy address belongs to the physical page: [ 12.800208] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a0f [ 12.800481] flags: 0x200000000000000(node=0|zone=2) [ 12.800647] raw: 0200000000000000 ffffea00040e83c8 ffffea00040e83c8 0000000000000000 [ 12.801079] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 12.801426] page dumped because: kasan: bad access detected [ 12.801627] [ 12.801711] Memory state around the buggy address: [ 12.801864] ffff888103a0fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 12.802195] ffff888103a0fc80: f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00 [ 12.802517] >ffff888103a0fd00: 02 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 12.802829] ^ [ 12.803081] ffff888103a0fd80: f1 f1 f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00 [ 12.803303] ffff888103a0fe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.803546] ==================================================================