Date
June 17, 2025, 3:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.523298] ================================================================== [ 24.523800] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 24.523979] Read of size 1 at addr ffff800080a97b5f by task kunit_try_catch/253 [ 24.524115] [ 24.524204] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT [ 24.524418] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.524487] Hardware name: linux,dummy-virt (DT) [ 24.524568] Call trace: [ 24.524626] show_stack+0x20/0x38 (C) [ 24.525301] dump_stack_lvl+0x8c/0xd0 [ 24.525752] print_report+0x310/0x608 [ 24.526031] kasan_report+0xdc/0x128 [ 24.526123] __asan_report_load1_noabort+0x20/0x30 [ 24.526224] kasan_alloca_oob_left+0x2b8/0x310 [ 24.526394] kunit_try_run_case+0x170/0x3f0 [ 24.526549] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.526668] kthread+0x328/0x630 [ 24.526825] ret_from_fork+0x10/0x20 [ 24.526963] [ 24.527035] The buggy address belongs to stack of task kunit_try_catch/253 [ 24.527221] [ 24.527284] The buggy address belongs to the virtual mapping at [ 24.527284] [ffff800080a90000, ffff800080a99000) created by: [ 24.527284] kernel_clone+0x150/0x7a8 [ 24.527490] [ 24.527540] The buggy address belongs to the physical page: [ 24.527612] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078e1 [ 24.527793] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.528017] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 24.528213] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 24.528343] page dumped because: kasan: bad access detected [ 24.528415] [ 24.528456] Memory state around the buggy address: [ 24.528567] ffff800080a97a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.528680] ffff800080a97a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.528803] >ffff800080a97b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 24.528920] ^ [ 24.529018] ffff800080a97b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 24.529130] ffff800080a97c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 24.529264] ==================================================================
[ 22.195348] ================================================================== [ 22.197200] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 22.197810] Read of size 1 at addr ffff8881039bfc3f by task kunit_try_catch/271 [ 22.199116] [ 22.199519] CPU: 0 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT(voluntary) [ 22.199656] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.199682] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.199716] Call Trace: [ 22.199738] <TASK> [ 22.199766] dump_stack_lvl+0x73/0xb0 [ 22.199864] print_report+0xd1/0x650 [ 22.199924] ? __virt_addr_valid+0x1db/0x2d0 [ 22.199964] ? kasan_alloca_oob_left+0x320/0x380 [ 22.200002] ? kasan_addr_to_slab+0x11/0xa0 [ 22.200041] ? kasan_alloca_oob_left+0x320/0x380 [ 22.200105] kasan_report+0x141/0x180 [ 22.200148] ? kasan_alloca_oob_left+0x320/0x380 [ 22.200192] __asan_report_load1_noabort+0x18/0x20 [ 22.200226] kasan_alloca_oob_left+0x320/0x380 [ 22.200269] ? kasan_alloca_oob_left+0xb2/0x380 [ 22.200336] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 22.200379] ? __schedule+0x10cc/0x2b60 [ 22.200419] ? __pfx_read_tsc+0x10/0x10 [ 22.200456] ? ktime_get_ts64+0x86/0x230 [ 22.200498] kunit_try_run_case+0x1a5/0x480 [ 22.200541] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.200577] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.200617] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.200654] ? __kthread_parkme+0x82/0x180 [ 22.200691] ? preempt_count_sub+0x50/0x80 [ 22.200732] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.200772] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.200809] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.200847] kthread+0x337/0x6f0 [ 22.200874] ? trace_preempt_on+0x20/0xc0 [ 22.200915] ? __pfx_kthread+0x10/0x10 [ 22.200943] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.200979] ? calculate_sigpending+0x7b/0xa0 [ 22.201014] ? __pfx_kthread+0x10/0x10 [ 22.201056] ret_from_fork+0x41/0x80 [ 22.201159] ? __pfx_kthread+0x10/0x10 [ 22.201216] ret_from_fork_asm+0x1a/0x30 [ 22.201316] </TASK> [ 22.201348] [ 22.222678] The buggy address belongs to stack of task kunit_try_catch/271 [ 22.223559] [ 22.223777] The buggy address belongs to the physical page: [ 22.224237] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039bf [ 22.225820] flags: 0x200000000000000(node=0|zone=2) [ 22.226423] raw: 0200000000000000 ffffea00040e6fc8 ffffea00040e6fc8 0000000000000000 [ 22.227281] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 22.228137] page dumped because: kasan: bad access detected [ 22.228776] [ 22.229334] Memory state around the buggy address: [ 22.229697] ffff8881039bfb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.230790] ffff8881039bfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.231656] >ffff8881039bfc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 22.232259] ^ [ 22.232950] ffff8881039bfc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 22.234334] ffff8881039bfd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 22.235402] ==================================================================