Date
July 15, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 50.029980] ================================================================== [ 50.030055] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 50.030055] [ 50.030138] Use-after-free read at 0x00000000dcd8e5a3 (in kfence-#152): [ 50.030209] test_krealloc+0x51c/0x830 [ 50.030254] kunit_try_run_case+0x170/0x3f0 [ 50.030297] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 50.030341] kthread+0x328/0x630 [ 50.030380] ret_from_fork+0x10/0x20 [ 50.030418] [ 50.030442] kfence-#152: 0x00000000dcd8e5a3-0x00000000cd656a55, size=32, cache=kmalloc-32 [ 50.030442] [ 50.030498] allocated by task 338 on cpu 0 at 50.029357s (0.001137s ago): [ 50.030566] test_alloc+0x29c/0x628 [ 50.030607] test_krealloc+0xc0/0x830 [ 50.030647] kunit_try_run_case+0x170/0x3f0 [ 50.030686] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 50.030728] kthread+0x328/0x630 [ 50.030764] ret_from_fork+0x10/0x20 [ 50.030802] [ 50.030824] freed by task 338 on cpu 0 at 50.029588s (0.001233s ago): [ 50.030885] krealloc_noprof+0x148/0x360 [ 50.030924] test_krealloc+0x1dc/0x830 [ 50.030962] kunit_try_run_case+0x170/0x3f0 [ 50.031000] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 50.031043] kthread+0x328/0x630 [ 50.031078] ret_from_fork+0x10/0x20 [ 50.031115] [ 50.031158] CPU: 0 UID: 0 PID: 338 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 50.031244] Tainted: [B]=BAD_PAGE, [N]=TEST [ 50.031272] Hardware name: linux,dummy-virt (DT) [ 50.031306] ==================================================================
[ 50.572226] ================================================================== [ 50.572619] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 50.572619] [ 50.572983] Use-after-free read at 0x(____ptrval____) (in kfence-#144): [ 50.573254] test_krealloc+0x6fc/0xbe0 [ 50.573424] kunit_try_run_case+0x1a5/0x480 [ 50.573797] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 50.573996] kthread+0x337/0x6f0 [ 50.574161] ret_from_fork+0x116/0x1d0 [ 50.574344] ret_from_fork_asm+0x1a/0x30 [ 50.574578] [ 50.574671] kfence-#144: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 50.574671] [ 50.574979] allocated by task 354 on cpu 0 at 50.571623s (0.003354s ago): [ 50.575309] test_alloc+0x364/0x10f0 [ 50.575488] test_krealloc+0xad/0xbe0 [ 50.575707] kunit_try_run_case+0x1a5/0x480 [ 50.575930] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 50.576172] kthread+0x337/0x6f0 [ 50.576318] ret_from_fork+0x116/0x1d0 [ 50.576532] ret_from_fork_asm+0x1a/0x30 [ 50.576710] [ 50.576813] freed by task 354 on cpu 0 at 50.571854s (0.004957s ago): [ 50.577057] krealloc_noprof+0x108/0x340 [ 50.577258] test_krealloc+0x226/0xbe0 [ 50.577424] kunit_try_run_case+0x1a5/0x480 [ 50.577639] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 50.578049] kthread+0x337/0x6f0 [ 50.578234] ret_from_fork+0x116/0x1d0 [ 50.578431] ret_from_fork_asm+0x1a/0x30 [ 50.579359] [ 50.579546] CPU: 0 UID: 0 PID: 354 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 50.580061] Tainted: [B]=BAD_PAGE, [N]=TEST [ 50.580327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 50.580709] ==================================================================