Date
May 26, 2025, 9:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.236855] ================================================================== [ 20.236998] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 20.237519] Read of size 1 at addr ffff800080a17b4a by task kunit_try_catch/253 [ 20.237861] [ 20.237960] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT [ 20.238275] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.238347] Hardware name: linux,dummy-virt (DT) [ 20.238700] Call trace: [ 20.238842] show_stack+0x20/0x38 (C) [ 20.238969] dump_stack_lvl+0x8c/0xd0 [ 20.239066] print_report+0x310/0x608 [ 20.239147] kasan_report+0xdc/0x128 [ 20.239233] __asan_report_load1_noabort+0x20/0x30 [ 20.239350] kasan_alloca_oob_right+0x2dc/0x340 [ 20.239515] kunit_try_run_case+0x170/0x3f0 [ 20.239665] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.239821] kthread+0x328/0x630 [ 20.239950] ret_from_fork+0x10/0x20 [ 20.240063] [ 20.240132] The buggy address belongs to stack of task kunit_try_catch/253 [ 20.240252] [ 20.240313] The buggy address belongs to the virtual mapping at [ 20.240313] [ffff800080a10000, ffff800080a19000) created by: [ 20.240313] kernel_clone+0x150/0x7a8 [ 20.240511] [ 20.240578] The buggy address belongs to the physical page: [ 20.240667] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077f8 [ 20.240834] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.241029] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.241194] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.241292] page dumped because: kasan: bad access detected [ 20.241366] [ 20.241403] Memory state around the buggy address: [ 20.241476] ffff800080a17a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.241573] ffff800080a17a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.241677] >ffff800080a17b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 20.241920] ^ [ 20.242045] ffff800080a17b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 20.242429] ffff800080a17c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 20.242651] ==================================================================
[ 12.866351] ================================================================== [ 12.866858] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 12.867237] Read of size 1 at addr ffff88810387fc4a by task kunit_try_catch/271 [ 12.867539] [ 12.867648] CPU: 1 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT(voluntary) [ 12.867693] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.867706] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.867726] Call Trace: [ 12.867738] <TASK> [ 12.867753] dump_stack_lvl+0x73/0xb0 [ 12.867779] print_report+0xd1/0x650 [ 12.867802] ? __virt_addr_valid+0x1db/0x2d0 [ 12.867825] ? kasan_alloca_oob_right+0x329/0x390 [ 12.867847] ? kasan_addr_to_slab+0x11/0xa0 [ 12.867867] ? kasan_alloca_oob_right+0x329/0x390 [ 12.867891] kasan_report+0x141/0x180 [ 12.867969] ? kasan_alloca_oob_right+0x329/0x390 [ 12.868000] __asan_report_load1_noabort+0x18/0x20 [ 12.868021] kasan_alloca_oob_right+0x329/0x390 [ 12.868077] ? __kasan_check_write+0x18/0x20 [ 12.868098] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.868121] ? irqentry_exit+0x2a/0x60 [ 12.868141] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 12.868167] ? trace_hardirqs_on+0x37/0xe0 [ 12.868192] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 12.868220] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 12.868248] kunit_try_run_case+0x1a5/0x480 [ 12.868269] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.868289] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.868314] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.868338] ? __kthread_parkme+0x82/0x180 [ 12.868359] ? preempt_count_sub+0x50/0x80 [ 12.868393] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.868414] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.868437] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.868462] kthread+0x337/0x6f0 [ 12.868481] ? trace_preempt_on+0x20/0xc0 [ 12.868503] ? __pfx_kthread+0x10/0x10 [ 12.868523] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.868545] ? calculate_sigpending+0x7b/0xa0 [ 12.868568] ? __pfx_kthread+0x10/0x10 [ 12.868589] ret_from_fork+0x116/0x1d0 [ 12.868607] ? __pfx_kthread+0x10/0x10 [ 12.868627] ret_from_fork_asm+0x1a/0x30 [ 12.868657] </TASK> [ 12.868666] [ 12.877311] The buggy address belongs to stack of task kunit_try_catch/271 [ 12.877633] [ 12.878485] The buggy address belongs to the physical page: [ 12.879009] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10387f [ 12.879774] flags: 0x200000000000000(node=0|zone=2) [ 12.880038] raw: 0200000000000000 ffffea00040e1fc8 ffffea00040e1fc8 0000000000000000 [ 12.880403] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 12.880714] page dumped because: kasan: bad access detected [ 12.880939] [ 12.881036] Memory state around the buggy address: [ 12.881308] ffff88810387fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.881602] ffff88810387fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.881940] >ffff88810387fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 12.882284] ^ [ 12.882476] ffff88810387fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 12.882792] ffff88810387fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 12.883150] ==================================================================