Date
July 15, 2025, 2:09 p.m.
Environment | |
---|---|
qemu-arm64 | |
qemu-x86_64 |
[ 20.064600] ================================================================== [ 20.064743] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 20.064806] Read of size 1 at addr ffff8000809d7b5f by task kunit_try_catch/253 [ 20.064858] [ 20.064968] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 20.065435] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.065632] Hardware name: linux,dummy-virt (DT) [ 20.065671] Call trace: [ 20.065958] show_stack+0x20/0x38 (C) [ 20.066094] dump_stack_lvl+0x8c/0xd0 [ 20.066161] print_report+0x310/0x5d0 [ 20.066301] kasan_report+0xdc/0x128 [ 20.066400] __asan_report_load1_noabort+0x20/0x30 [ 20.066498] kasan_alloca_oob_left+0x2b8/0x310 [ 20.066669] kunit_try_run_case+0x170/0x3f0 [ 20.066742] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.066956] kthread+0x328/0x630 [ 20.067114] ret_from_fork+0x10/0x20 [ 20.067337] [ 20.067408] The buggy address belongs to stack of task kunit_try_catch/253 [ 20.067510] [ 20.067680] The buggy address ffff8000809d7b5f belongs to a vmalloc virtual mapping [ 20.067849] The buggy address belongs to the physical page: [ 20.067906] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106627 [ 20.068039] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.068136] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.068455] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.068543] page dumped because: kasan: bad access detected [ 20.068673] [ 20.068714] Memory state around the buggy address: [ 20.068792] ffff8000809d7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.068901] ffff8000809d7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.069015] >ffff8000809d7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 20.069067] ^ [ 20.069304] ffff8000809d7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 20.069609] ffff8000809d7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 20.069774] ==================================================================
[ 12.807831] ================================================================== [ 12.808313] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 12.808629] Read of size 1 at addr ffff8881039e7c3f by task kunit_try_catch/270 [ 12.808948] [ 12.809030] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 12.809343] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.809356] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.809375] Call Trace: [ 12.809386] <TASK> [ 12.809399] dump_stack_lvl+0x73/0xb0 [ 12.809424] print_report+0xd1/0x610 [ 12.809447] ? __virt_addr_valid+0x1db/0x2d0 [ 12.809468] ? kasan_alloca_oob_left+0x320/0x380 [ 12.809490] ? kasan_addr_to_slab+0x11/0xa0 [ 12.809510] ? kasan_alloca_oob_left+0x320/0x380 [ 12.809532] kasan_report+0x141/0x180 [ 12.809554] ? kasan_alloca_oob_left+0x320/0x380 [ 12.809582] __asan_report_load1_noabort+0x18/0x20 [ 12.809603] kasan_alloca_oob_left+0x320/0x380 [ 12.809627] ? finish_task_switch.isra.0+0x153/0x700 [ 12.809651] ? ww_mutex_unlock+0xce/0x150 [ 12.809671] ? trace_hardirqs_on+0x37/0xe0 [ 12.809694] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 12.809720] ? __schedule+0x10cc/0x2b60 [ 12.809742] ? __pfx_read_tsc+0x10/0x10 [ 12.809761] ? ktime_get_ts64+0x86/0x230 [ 12.809785] kunit_try_run_case+0x1a5/0x480 [ 12.809806] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.809824] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.809936] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.809966] ? __kthread_parkme+0x82/0x180 [ 12.809988] ? preempt_count_sub+0x50/0x80 [ 12.810012] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.810032] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.810055] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.810078] kthread+0x337/0x6f0 [ 12.810095] ? trace_preempt_on+0x20/0xc0 [ 12.810117] ? __pfx_kthread+0x10/0x10 [ 12.810134] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.810155] ? calculate_sigpending+0x7b/0xa0 [ 12.810176] ? __pfx_kthread+0x10/0x10 [ 12.810194] ret_from_fork+0x41/0x80 [ 12.810213] ? __pfx_kthread+0x10/0x10 [ 12.810230] ret_from_fork_asm+0x1a/0x30 [ 12.810260] </TASK> [ 12.810270] [ 12.822801] The buggy address belongs to stack of task kunit_try_catch/270 [ 12.823490] [ 12.823647] The buggy address belongs to the physical page: [ 12.824187] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039e7 [ 12.824940] flags: 0x200000000000000(node=0|zone=2) [ 12.825130] raw: 0200000000000000 ffffea00040e79c8 ffffea00040e79c8 0000000000000000 [ 12.825367] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 12.825591] page dumped because: kasan: bad access detected [ 12.825952] [ 12.826106] Memory state around the buggy address: [ 12.826504] ffff8881039e7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.827214] ffff8881039e7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.827892] >ffff8881039e7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 12.828728] ^ [ 12.829383] ffff8881039e7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 12.830079] ffff8881039e7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 12.830780] ==================================================================