Date
July 8, 2025, 4:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.966531] ================================================================== [ 19.966592] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 19.966650] Read of size 1 at addr ffff8000809a7b4a by task kunit_try_catch/255 [ 19.966712] [ 19.966745] CPU: 0 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT [ 19.966844] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.966883] Hardware name: linux,dummy-virt (DT) [ 19.966916] Call trace: [ 19.966940] show_stack+0x20/0x38 (C) [ 19.966991] dump_stack_lvl+0x8c/0xd0 [ 19.967042] print_report+0x310/0x608 [ 19.967090] kasan_report+0xdc/0x128 [ 19.967136] __asan_report_load1_noabort+0x20/0x30 [ 19.967194] kasan_alloca_oob_right+0x2dc/0x340 [ 19.967248] kunit_try_run_case+0x170/0x3f0 [ 19.967297] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.967374] kthread+0x328/0x630 [ 19.967421] ret_from_fork+0x10/0x20 [ 19.967478] [ 19.967503] The buggy address belongs to stack of task kunit_try_catch/255 [ 19.967559] [ 19.967584] The buggy address belongs to the virtual mapping at [ 19.967584] [ffff8000809a0000, ffff8000809a9000) created by: [ 19.967584] kernel_clone+0x150/0x7a8 [ 19.967664] [ 19.967695] The buggy address belongs to the physical page: [ 19.967729] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063de [ 19.967790] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.967855] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 19.967905] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.967947] page dumped because: kasan: bad access detected [ 19.967980] [ 19.968002] Memory state around the buggy address: [ 19.968035] ffff8000809a7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.968079] ffff8000809a7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.968125] >ffff8000809a7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 19.968166] ^ [ 19.969121] ffff8000809a7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 19.969218] ffff8000809a7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 19.969262] ==================================================================
[ 13.157229] ================================================================== [ 13.157722] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 13.157994] Read of size 1 at addr ffff888103c3fc4a by task kunit_try_catch/273 [ 13.158219] [ 13.158314] CPU: 1 UID: 0 PID: 273 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT(voluntary) [ 13.158366] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.158377] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.158400] Call Trace: [ 13.158413] <TASK> [ 13.158429] dump_stack_lvl+0x73/0xb0 [ 13.158457] print_report+0xd1/0x650 [ 13.158480] ? __virt_addr_valid+0x1db/0x2d0 [ 13.158504] ? kasan_alloca_oob_right+0x329/0x390 [ 13.158527] ? kasan_addr_to_slab+0x11/0xa0 [ 13.158548] ? kasan_alloca_oob_right+0x329/0x390 [ 13.158571] kasan_report+0x141/0x180 [ 13.158594] ? kasan_alloca_oob_right+0x329/0x390 [ 13.158621] __asan_report_load1_noabort+0x18/0x20 [ 13.158643] kasan_alloca_oob_right+0x329/0x390 [ 13.158667] ? finish_task_switch.isra.0+0x153/0x700 [ 13.158692] ? ww_mutex_unlock+0x10e/0x150 [ 13.158712] ? trace_hardirqs_on+0x37/0xe0 [ 13.158737] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 13.158763] ? __schedule+0x10cc/0x2b60 [ 13.158786] ? __pfx_read_tsc+0x10/0x10 [ 13.158807] ? ktime_get_ts64+0x86/0x230 [ 13.158832] kunit_try_run_case+0x1a5/0x480 [ 13.158855] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.158915] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.158944] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.158968] ? __kthread_parkme+0x82/0x180 [ 13.158991] ? preempt_count_sub+0x50/0x80 [ 13.159017] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.159039] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.159064] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.159091] kthread+0x337/0x6f0 [ 13.159108] ? trace_preempt_on+0x20/0xc0 [ 13.159131] ? __pfx_kthread+0x10/0x10 [ 13.159150] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.159173] ? calculate_sigpending+0x7b/0xa0 [ 13.159195] ? __pfx_kthread+0x10/0x10 [ 13.159215] ret_from_fork+0x41/0x80 [ 13.159237] ? __pfx_kthread+0x10/0x10 [ 13.159256] ret_from_fork_asm+0x1a/0x30 [ 13.159287] </TASK> [ 13.159299] [ 13.174700] The buggy address belongs to stack of task kunit_try_catch/273 [ 13.175434] [ 13.175655] The buggy address belongs to the physical page: [ 13.176248] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103c3f [ 13.177134] flags: 0x200000000000000(node=0|zone=2) [ 13.177661] raw: 0200000000000000 ffffea00040f0fc8 ffffea00040f0fc8 0000000000000000 [ 13.178566] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.179453] page dumped because: kasan: bad access detected [ 13.180134] [ 13.180305] Memory state around the buggy address: [ 13.180924] ffff888103c3fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.181705] ffff888103c3fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.182527] >ffff888103c3fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.183303] ^ [ 13.183970] ffff888103c3fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.184217] ffff888103c3fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.184434] ==================================================================