Date
July 9, 2025, 12:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.847732] ================================================================== [ 21.847988] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 21.848343] Read of size 1 at addr ffff800080a77b5f by task kunit_try_catch/252 [ 21.848424] [ 21.848583] CPU: 1 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.848702] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.848732] Hardware name: linux,dummy-virt (DT) [ 21.848765] Call trace: [ 21.848790] show_stack+0x20/0x38 (C) [ 21.849593] dump_stack_lvl+0x8c/0xd0 [ 21.849920] print_report+0x310/0x608 [ 21.850018] kasan_report+0xdc/0x128 [ 21.850148] __asan_report_load1_noabort+0x20/0x30 [ 21.850244] kasan_alloca_oob_left+0x2b8/0x310 [ 21.850366] kunit_try_run_case+0x170/0x3f0 [ 21.850474] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.850540] kthread+0x328/0x630 [ 21.850598] ret_from_fork+0x10/0x20 [ 21.850681] [ 21.850728] The buggy address belongs to stack of task kunit_try_catch/252 [ 21.850814] [ 21.850860] The buggy address belongs to the virtual mapping at [ 21.850860] [ffff800080a70000, ffff800080a79000) created by: [ 21.850860] kernel_clone+0x150/0x7a8 [ 21.850968] [ 21.851004] The buggy address belongs to the physical page: [ 21.851038] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106e8c [ 21.851100] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.851194] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 21.851257] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 21.851310] page dumped because: kasan: bad access detected [ 21.851352] [ 21.851382] Memory state around the buggy address: [ 21.851437] ffff800080a77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.851493] ffff800080a77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.851540] >ffff800080a77b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 21.851581] ^ [ 21.851622] ffff800080a77b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 21.851669] ffff800080a77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 21.851712] ==================================================================
[ 14.526187] ================================================================== [ 14.527355] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 14.528435] Read of size 1 at addr ffff88810a6bfc3f by task kunit_try_catch/268 [ 14.529075] [ 14.529409] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.529462] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.529474] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.529498] Call Trace: [ 14.529512] <TASK> [ 14.529532] dump_stack_lvl+0x73/0xb0 [ 14.529566] print_report+0xd1/0x650 [ 14.529591] ? __virt_addr_valid+0x1db/0x2d0 [ 14.529614] ? kasan_alloca_oob_left+0x320/0x380 [ 14.529637] ? kasan_addr_to_slab+0x11/0xa0 [ 14.529658] ? kasan_alloca_oob_left+0x320/0x380 [ 14.529681] kasan_report+0x141/0x180 [ 14.529704] ? kasan_alloca_oob_left+0x320/0x380 [ 14.529731] __asan_report_load1_noabort+0x18/0x20 [ 14.529756] kasan_alloca_oob_left+0x320/0x380 [ 14.529779] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.529801] ? irqentry_exit+0x2a/0x60 [ 14.529824] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 14.529850] ? trace_hardirqs_on+0x37/0xe0 [ 14.529876] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.529903] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.529942] kunit_try_run_case+0x1a5/0x480 [ 14.530093] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.530117] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.530187] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.530213] ? __kthread_parkme+0x82/0x180 [ 14.530236] ? preempt_count_sub+0x50/0x80 [ 14.530261] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.530297] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.530322] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.530349] kthread+0x337/0x6f0 [ 14.530368] ? trace_preempt_on+0x20/0xc0 [ 14.530391] ? __pfx_kthread+0x10/0x10 [ 14.530411] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.530433] ? calculate_sigpending+0x7b/0xa0 [ 14.530458] ? __pfx_kthread+0x10/0x10 [ 14.530479] ret_from_fork+0x116/0x1d0 [ 14.530499] ? __pfx_kthread+0x10/0x10 [ 14.530519] ret_from_fork_asm+0x1a/0x30 [ 14.530551] </TASK> [ 14.530563] [ 14.547692] The buggy address belongs to stack of task kunit_try_catch/268 [ 14.548310] [ 14.548556] The buggy address belongs to the physical page: [ 14.549046] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a6bf [ 14.549336] flags: 0x200000000000000(node=0|zone=2) [ 14.549848] raw: 0200000000000000 ffffea000429afc8 ffffea000429afc8 0000000000000000 [ 14.550894] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.551752] page dumped because: kasan: bad access detected [ 14.552169] [ 14.552326] Memory state around the buggy address: [ 14.552864] ffff88810a6bfb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.553318] ffff88810a6bfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.554061] >ffff88810a6bfc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.554800] ^ [ 14.554971] ffff88810a6bfc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.555179] ffff88810a6bfd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.555664] ==================================================================