Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.873783] ================================================================== [ 21.874087] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 21.874529] Read of size 1 at addr ffff800080ab7b4a by task kunit_try_catch/254 [ 21.874751] [ 21.874828] CPU: 0 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 21.875065] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.875131] Hardware name: linux,dummy-virt (DT) [ 21.875214] Call trace: [ 21.875288] show_stack+0x20/0x38 (C) [ 21.875457] dump_stack_lvl+0x8c/0xd0 [ 21.875569] print_report+0x310/0x608 [ 21.875958] kasan_report+0xdc/0x128 [ 21.876108] __asan_report_load1_noabort+0x20/0x30 [ 21.876267] kasan_alloca_oob_right+0x2dc/0x340 [ 21.876428] kunit_try_run_case+0x170/0x3f0 [ 21.876536] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.876688] kthread+0x328/0x630 [ 21.876837] ret_from_fork+0x10/0x20 [ 21.877205] [ 21.877271] The buggy address belongs to stack of task kunit_try_catch/254 [ 21.877475] [ 21.877565] The buggy address belongs to the virtual mapping at [ 21.877565] [ffff800080ab0000, ffff800080ab9000) created by: [ 21.877565] kernel_clone+0x150/0x7a8 [ 21.877761] [ 21.877812] The buggy address belongs to the physical page: [ 21.877888] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107a36 [ 21.878008] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.878127] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 21.878270] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 21.878757] page dumped because: kasan: bad access detected [ 21.878937] [ 21.878982] Memory state around the buggy address: [ 21.879233] ffff800080ab7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.879466] ffff800080ab7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.879567] >ffff800080ab7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 21.879821] ^ [ 21.879935] ffff800080ab7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 21.880044] ffff800080ab7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 21.880142] ==================================================================
[ 15.700393] ================================================================== [ 15.701060] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 15.701364] Read of size 1 at addr ffff888103a4fc4a by task kunit_try_catch/271 [ 15.701634] [ 15.701756] CPU: 0 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 15.701812] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.701827] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.701853] Call Trace: [ 15.701868] <TASK> [ 15.701891] dump_stack_lvl+0x73/0xb0 [ 15.701924] print_report+0xd1/0x650 [ 15.701950] ? __virt_addr_valid+0x1db/0x2d0 [ 15.701978] ? kasan_alloca_oob_right+0x329/0x390 [ 15.702004] ? kasan_addr_to_slab+0x11/0xa0 [ 15.702027] ? kasan_alloca_oob_right+0x329/0x390 [ 15.702054] kasan_report+0x141/0x180 [ 15.702079] ? kasan_alloca_oob_right+0x329/0x390 [ 15.702112] __asan_report_load1_noabort+0x18/0x20 [ 15.702140] kasan_alloca_oob_right+0x329/0x390 [ 15.702164] ? __kasan_check_write+0x18/0x20 [ 15.702187] ? __pfx_sched_clock_cpu+0x10/0x10 [ 15.702213] ? finish_task_switch.isra.0+0x153/0x700 [ 15.702239] ? ww_mutex_unlock+0x6e/0x150 [ 15.702266] ? trace_hardirqs_on+0x37/0xe0 [ 15.702295] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 15.702325] ? __schedule+0x10cc/0x2b60 [ 15.702349] ? __pfx_read_tsc+0x10/0x10 [ 15.702375] ? ktime_get_ts64+0x86/0x230 [ 15.702403] kunit_try_run_case+0x1a5/0x480 [ 15.702437] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.702463] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.702489] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.702515] ? __kthread_parkme+0x82/0x180 [ 15.702539] ? preempt_count_sub+0x50/0x80 [ 15.702566] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.702593] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.702619] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.702672] kthread+0x337/0x6f0 [ 15.702912] ? trace_preempt_on+0x20/0xc0 [ 15.702944] ? __pfx_kthread+0x10/0x10 [ 15.702969] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.702996] ? calculate_sigpending+0x7b/0xa0 [ 15.703023] ? __pfx_kthread+0x10/0x10 [ 15.703343] ret_from_fork+0x116/0x1d0 [ 15.703371] ? __pfx_kthread+0x10/0x10 [ 15.703395] ret_from_fork_asm+0x1a/0x30 [ 15.703434] </TASK> [ 15.703459] [ 15.721705] The buggy address belongs to stack of task kunit_try_catch/271 [ 15.722012] [ 15.722196] The buggy address belongs to the physical page: [ 15.722513] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a4f [ 15.722831] flags: 0x200000000000000(node=0|zone=2) [ 15.723342] raw: 0200000000000000 ffffea00040e93c8 ffffea00040e93c8 0000000000000000 [ 15.723913] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 15.724253] page dumped because: kasan: bad access detected [ 15.724561] [ 15.724664] Memory state around the buggy address: [ 15.725047] ffff888103a4fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.725320] ffff888103a4fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.725697] >ffff888103a4fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 15.726142] ^ [ 15.726405] ffff888103a4fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 15.726770] ffff888103a4fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 15.727197] ==================================================================