Date
July 8, 2025, 7:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.548461] ================================================================== [ 21.548671] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 21.548754] Read of size 1 at addr ffff800080a57b5f by task kunit_try_catch/251 [ 21.548808] [ 21.548908] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.548998] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.549051] Hardware name: linux,dummy-virt (DT) [ 21.549086] Call trace: [ 21.549120] show_stack+0x20/0x38 (C) [ 21.549174] dump_stack_lvl+0x8c/0xd0 [ 21.549232] print_report+0x310/0x608 [ 21.549281] kasan_report+0xdc/0x128 [ 21.549328] __asan_report_load1_noabort+0x20/0x30 [ 21.549382] kasan_alloca_oob_left+0x2b8/0x310 [ 21.549430] kunit_try_run_case+0x170/0x3f0 [ 21.549489] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.549545] kthread+0x328/0x630 [ 21.549588] ret_from_fork+0x10/0x20 [ 21.549645] [ 21.549669] The buggy address belongs to stack of task kunit_try_catch/251 [ 21.549753] [ 21.549779] The buggy address belongs to the virtual mapping at [ 21.549779] [ffff800080a50000, ffff800080a59000) created by: [ 21.549779] kernel_clone+0x150/0x7a8 [ 21.549857] [ 21.549879] The buggy address belongs to the physical page: [ 21.549912] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xfff00000c6481948 pfn:0x106481 [ 21.549990] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.550071] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 21.550128] raw: fff00000c6481948 0000000000000000 00000001ffffffff 0000000000000000 [ 21.550170] page dumped because: kasan: bad access detected [ 21.550201] [ 21.550220] Memory state around the buggy address: [ 21.550255] ffff800080a57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.550299] ffff800080a57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.550342] >ffff800080a57b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 21.550381] ^ [ 21.550420] ffff800080a57b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 21.550464] ffff800080a57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 21.550506] ==================================================================
[ 14.842661] ================================================================== [ 14.843962] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 14.844820] Read of size 1 at addr ffff888103adfc3f by task kunit_try_catch/268 [ 14.845118] [ 14.845218] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.845267] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.845279] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.845300] Call Trace: [ 14.845314] <TASK> [ 14.845332] dump_stack_lvl+0x73/0xb0 [ 14.845362] print_report+0xd1/0x650 [ 14.845384] ? __virt_addr_valid+0x1db/0x2d0 [ 14.845407] ? kasan_alloca_oob_left+0x320/0x380 [ 14.845428] ? kasan_addr_to_slab+0x11/0xa0 [ 14.845448] ? kasan_alloca_oob_left+0x320/0x380 [ 14.845470] kasan_report+0x141/0x180 [ 14.845491] ? kasan_alloca_oob_left+0x320/0x380 [ 14.845518] __asan_report_load1_noabort+0x18/0x20 [ 14.845541] kasan_alloca_oob_left+0x320/0x380 [ 14.845568] ? __kasan_check_write+0x18/0x20 [ 14.845587] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.845609] ? finish_task_switch.isra.0+0x153/0x700 [ 14.845631] ? out_of_line_wait_on_bit_timeout+0x7e/0x190 [ 14.845655] ? trace_hardirqs_on+0x37/0xe0 [ 14.845679] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.845704] ? __schedule+0x10cc/0x2b60 [ 14.845724] ? __pfx_read_tsc+0x10/0x10 [ 14.845747] ? ktime_get_ts64+0x86/0x230 [ 14.845773] kunit_try_run_case+0x1a5/0x480 [ 14.845797] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.845820] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.845843] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.845865] ? __kthread_parkme+0x82/0x180 [ 14.845886] ? preempt_count_sub+0x50/0x80 [ 14.845910] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.845933] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.845955] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.845976] kthread+0x337/0x6f0 [ 14.845996] ? trace_preempt_on+0x20/0xc0 [ 14.846017] ? __pfx_kthread+0x10/0x10 [ 14.846037] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.846499] ? calculate_sigpending+0x7b/0xa0 [ 14.846540] ? __pfx_kthread+0x10/0x10 [ 14.846563] ret_from_fork+0x116/0x1d0 [ 14.846582] ? __pfx_kthread+0x10/0x10 [ 14.846602] ret_from_fork_asm+0x1a/0x30 [ 14.846635] </TASK> [ 14.846647] [ 14.860569] The buggy address belongs to stack of task kunit_try_catch/268 [ 14.861158] [ 14.861406] The buggy address belongs to the physical page: [ 14.861643] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103adf [ 14.862067] flags: 0x200000000000000(node=0|zone=2) [ 14.862645] raw: 0200000000000000 ffffea00040eb7c8 ffffea00040eb7c8 0000000000000000 [ 14.863145] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.863481] page dumped because: kasan: bad access detected [ 14.863800] [ 14.864272] Memory state around the buggy address: [ 14.864533] ffff888103adfb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.864810] ffff888103adfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.865452] >ffff888103adfc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.866036] ^ [ 14.866334] ffff888103adfc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.866823] ffff888103adfd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.867383] ==================================================================