Date
July 4, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 63.459858] ================================================================== [ 63.459936] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 63.459936] [ 63.460017] Use-after-free read at 0x0000000038701685 (in kfence-#189): [ 63.460070] test_krealloc+0x51c/0x830 [ 63.460118] kunit_try_run_case+0x170/0x3f0 [ 63.460165] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 63.460213] kthread+0x328/0x630 [ 63.460255] ret_from_fork+0x10/0x20 [ 63.460295] [ 63.460321] kfence-#189: 0x0000000038701685-0x000000004d261e7d, size=32, cache=kmalloc-32 [ 63.460321] [ 63.460376] allocated by task 370 on cpu 1 at 63.459217s (0.001155s ago): [ 63.460447] test_alloc+0x29c/0x628 [ 63.460490] test_krealloc+0xc0/0x830 [ 63.460531] kunit_try_run_case+0x170/0x3f0 [ 63.460573] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 63.460619] kthread+0x328/0x630 [ 63.460654] ret_from_fork+0x10/0x20 [ 63.460692] [ 63.460715] freed by task 370 on cpu 1 at 63.459471s (0.001241s ago): [ 63.460779] krealloc_noprof+0x148/0x360 [ 63.460824] test_krealloc+0x1dc/0x830 [ 63.460866] kunit_try_run_case+0x170/0x3f0 [ 63.460915] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 63.460960] kthread+0x328/0x630 [ 63.460996] ret_from_fork+0x10/0x20 [ 63.461035] [ 63.461078] CPU: 1 UID: 0 PID: 370 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 63.461157] Tainted: [B]=BAD_PAGE, [N]=TEST [ 63.461188] Hardware name: linux,dummy-virt (DT) [ 63.461222] ==================================================================
[ 62.486341] ================================================================== [ 62.487190] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 62.487190] [ 62.488006] Use-after-free read at 0x(____ptrval____) (in kfence-#163): [ 62.489078] test_krealloc+0x6fc/0xbe0 [ 62.489247] kunit_try_run_case+0x1a5/0x480 [ 62.489420] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 62.489601] kthread+0x337/0x6f0 [ 62.489728] ret_from_fork+0x116/0x1d0 [ 62.489896] ret_from_fork_asm+0x1a/0x30 [ 62.490255] [ 62.490435] kfence-#163: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 62.490435] [ 62.491273] allocated by task 386 on cpu 1 at 62.485585s (0.005686s ago): [ 62.491907] test_alloc+0x364/0x10f0 [ 62.492251] test_krealloc+0xad/0xbe0 [ 62.492487] kunit_try_run_case+0x1a5/0x480 [ 62.492642] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 62.492823] kthread+0x337/0x6f0 [ 62.493133] ret_from_fork+0x116/0x1d0 [ 62.493484] ret_from_fork_asm+0x1a/0x30 [ 62.493819] [ 62.493954] freed by task 386 on cpu 1 at 62.485861s (0.008090s ago): [ 62.494282] krealloc_noprof+0x108/0x340 [ 62.494486] test_krealloc+0x226/0xbe0 [ 62.494829] kunit_try_run_case+0x1a5/0x480 [ 62.495226] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 62.495524] kthread+0x337/0x6f0 [ 62.495649] ret_from_fork+0x116/0x1d0 [ 62.495784] ret_from_fork_asm+0x1a/0x30 [ 62.496059] [ 62.496255] CPU: 1 UID: 0 PID: 386 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 62.497312] Tainted: [B]=BAD_PAGE, [N]=TEST [ 62.497651] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 62.498088] ==================================================================