Date
July 15, 2025, 2:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-i386 | |
| qemu-x86_64 |
[ 132.158616] ================================================================== [ 132.159316] BUG: KFENCE: use-after-free read in test_krealloc+0x3bc/0x454 [ 132.159316] [ 132.160125] Use-after-free read at 0x0000000042142bad (in kfence-#200): [ 132.160795] test_krealloc+0x3bc/0x454 [ 132.161275] kunit_try_run_case+0x8c/0x124 [ 132.161831] kunit_generic_run_threadfn_adapter+0x38/0x54 [ 132.162472] kthread+0x15c/0x170 [ 132.162925] ret_from_fork+0x10/0x20 [ 132.163359] [ 132.163569] kfence-#200: 0x0000000042142bad-0x000000001dfcd44f, size=32, cache=kmalloc-128 [ 132.163569] [ 132.164440] allocated by task 282 on cpu 0 at 132.157187s: [ 132.165121] test_alloc+0x1e8/0x3b4 [ 132.165523] test_krealloc+0xc0/0x454 [ 132.165967] kunit_try_run_case+0x8c/0x124 [ 132.166430] kunit_generic_run_threadfn_adapter+0x38/0x54 [ 132.167029] kthread+0x15c/0x170 [ 132.167439] ret_from_fork+0x10/0x20 [ 132.167877] [ 132.168087] freed by task 282 on cpu 0 at 132.157814s: [ 132.168771] krealloc+0xbc/0x1c0 [ 132.169165] test_krealloc+0x180/0x454 [ 132.169614] kunit_try_run_case+0x8c/0x124 [ 132.170115] kunit_generic_run_threadfn_adapter+0x38/0x54 [ 132.170703] kthread+0x15c/0x170 [ 132.171111] ret_from_fork+0x10/0x20 [ 132.171566] [ 132.171824] CPU: 0 PID: 282 Comm: kunit_try_catch Tainted: G B N 6.1.146-rc1 #1 [ 132.172591] Hardware name: linux,dummy-virt (DT) [ 132.173055] ==================================================================
[ 47.267384] ================================================================== [ 47.267681] BUG: KFENCE: use-after-free read in test_krealloc+0x2b8/0x308 [ 47.267681] [ 47.267919] Use-after-free read at 0x(ptrval) (in kfence-#88): [ 47.268212] test_krealloc+0x2b8/0x308 [ 47.268343] kunit_try_run_case+0x52/0x80 [ 47.268471] kunit_generic_run_threadfn_adapter+0x16/0x20 [ 47.268688] kthread+0xda/0x100 [ 47.268808] ret_from_fork+0x1c/0x28 [ 47.268923] [ 47.268998] kfence-#88: 0x(ptrval)-0x(ptrval), size=32, cache=kmalloc-32 [ 47.268998] [ 47.269300] allocated by task 222 on cpu 0 at 47.267025s: [ 47.269505] test_alloc+0xc2/0x224 [ 47.269602] test_krealloc+0x3c/0x308 [ 47.269743] kunit_try_run_case+0x52/0x80 [ 47.269922] kunit_generic_run_threadfn_adapter+0x16/0x20 [ 47.270134] kthread+0xda/0x100 [ 47.270263] ret_from_fork+0x1c/0x28 [ 47.270388] [ 47.270464] freed by task 222 on cpu 0 at 47.267200s: [ 47.270661] krealloc+0x6c/0x1e0 [ 47.270752] test_krealloc+0xdc/0x308 [ 47.270910] kunit_try_run_case+0x52/0x80 [ 47.271079] kunit_generic_run_threadfn_adapter+0x16/0x20 [ 47.271282] kthread+0xda/0x100 [ 47.271421] ret_from_fork+0x1c/0x28 [ 47.271546] [ 47.271601] CPU: 0 PID: 222 Comm: kunit_try_catch Tainted: G B N 6.1.146-rc1 #1 [ 47.271813] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 47.272038] ==================================================================
[ 63.882563] ================================================================== [ 63.883024] BUG: KFENCE: use-after-free read in test_krealloc+0x413/0x4a6 [ 63.883024] [ 63.883598] Use-after-free read at 0x(____ptrval____) (in kfence-#158): [ 63.884449] test_krealloc+0x413/0x4a6 [ 63.884818] kunit_try_run_case+0x8f/0xd0 [ 63.885201] kunit_generic_run_threadfn_adapter+0x2f/0x50 [ 63.885636] kthread+0x17b/0x1b0 [ 63.885967] ret_from_fork+0x22/0x30 [ 63.886324] [ 63.886548] kfence-#158: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 63.886548] [ 63.887016] allocated by task 302 on cpu 0 at 63.881811s: [ 63.887693] test_alloc+0x21e/0x7f3 [ 63.887931] test_krealloc+0xb0/0x4a6 [ 63.888275] kunit_try_run_case+0x8f/0xd0 [ 63.888637] kunit_generic_run_threadfn_adapter+0x2f/0x50 [ 63.889039] kthread+0x17b/0x1b0 [ 63.889387] ret_from_fork+0x22/0x30 [ 63.889718] [ 63.889931] freed by task 302 on cpu 0 at 63.882115s: [ 63.890415] krealloc+0x85/0x140 [ 63.890622] test_krealloc+0x18c/0x4a6 [ 63.891014] kunit_try_run_case+0x8f/0xd0 [ 63.891287] kunit_generic_run_threadfn_adapter+0x2f/0x50 [ 63.891730] kthread+0x17b/0x1b0 [ 63.891932] ret_from_fork+0x22/0x30 [ 63.892150] [ 63.892474] CPU: 0 PID: 302 Comm: kunit_try_catch Tainted: G B N 6.1.146-rc1 #1 [ 63.892899] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 63.893460] ==================================================================