Date
July 22, 2025, 2:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.644209] ================================================================== [ 21.644297] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 21.644297] [ 21.644713] Use-after-free read at 0x00000000bed58b57 (in kfence-#89): [ 21.644822] test_use_after_free_read+0x114/0x248 [ 21.644878] kunit_try_run_case+0x170/0x3f0 [ 21.644922] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.645004] kthread+0x328/0x630 [ 21.645339] ret_from_fork+0x10/0x20 [ 21.645409] [ 21.645442] kfence-#89: 0x00000000bed58b57-0x000000002854108e, size=32, cache=test [ 21.645442] [ 21.645593] allocated by task 299 on cpu 0 at 21.643762s (0.001823s ago): [ 21.645698] test_alloc+0x230/0x628 [ 21.645797] test_use_after_free_read+0xd0/0x248 [ 21.645840] kunit_try_run_case+0x170/0x3f0 [ 21.645900] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.645993] kthread+0x328/0x630 [ 21.646046] ret_from_fork+0x10/0x20 [ 21.646094] [ 21.646118] freed by task 299 on cpu 0 at 21.643965s (0.002149s ago): [ 21.646229] test_use_after_free_read+0xf0/0x248 [ 21.646272] kunit_try_run_case+0x170/0x3f0 [ 21.646327] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.646368] kthread+0x328/0x630 [ 21.646408] ret_from_fork+0x10/0x20 [ 21.646447] [ 21.646489] CPU: 0 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT [ 21.646577] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.646612] Hardware name: linux,dummy-virt (DT) [ 21.646650] ================================================================== [ 21.540011] ================================================================== [ 21.540443] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 21.540443] [ 21.540569] Use-after-free read at 0x000000008b8bfb66 (in kfence-#88): [ 21.540933] test_use_after_free_read+0x114/0x248 [ 21.541021] kunit_try_run_case+0x170/0x3f0 [ 21.541107] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.541150] kthread+0x328/0x630 [ 21.541500] ret_from_fork+0x10/0x20 [ 21.541593] [ 21.541623] kfence-#88: 0x000000008b8bfb66-0x000000004b3c6ddf, size=32, cache=kmalloc-32 [ 21.541623] [ 21.541711] allocated by task 297 on cpu 0 at 21.539509s (0.002162s ago): [ 21.542092] test_alloc+0x29c/0x628 [ 21.542148] test_use_after_free_read+0xd0/0x248 [ 21.542437] kunit_try_run_case+0x170/0x3f0 [ 21.542630] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.542711] kthread+0x328/0x630 [ 21.542895] ret_from_fork+0x10/0x20 [ 21.543015] [ 21.543345] freed by task 297 on cpu 0 at 21.539589s (0.003592s ago): [ 21.543472] test_use_after_free_read+0x1c0/0x248 [ 21.543516] kunit_try_run_case+0x170/0x3f0 [ 21.543843] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.544069] kthread+0x328/0x630 [ 21.544173] ret_from_fork+0x10/0x20 [ 21.544757] [ 21.544857] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT [ 21.545032] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.545162] Hardware name: linux,dummy-virt (DT) [ 21.545250] ==================================================================
[ 16.456179] ================================================================== [ 16.456639] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 16.456639] [ 16.457059] Use-after-free read at 0x(____ptrval____) (in kfence-#74): [ 16.457349] test_use_after_free_read+0x129/0x270 [ 16.458012] kunit_try_run_case+0x1a5/0x480 [ 16.458256] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.458527] kthread+0x337/0x6f0 [ 16.458676] ret_from_fork+0x41/0x80 [ 16.458831] ret_from_fork_asm+0x1a/0x30 [ 16.459030] [ 16.459103] kfence-#74: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 16.459103] [ 16.459883] allocated by task 315 on cpu 1 at 16.455957s (0.003923s ago): [ 16.460277] test_alloc+0x364/0x10f0 [ 16.460595] test_use_after_free_read+0xdc/0x270 [ 16.460863] kunit_try_run_case+0x1a5/0x480 [ 16.461138] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.461347] kthread+0x337/0x6f0 [ 16.461628] ret_from_fork+0x41/0x80 [ 16.461902] ret_from_fork_asm+0x1a/0x30 [ 16.462101] [ 16.462498] freed by task 315 on cpu 1 at 16.456009s (0.006398s ago): [ 16.462827] test_use_after_free_read+0x1e7/0x270 [ 16.463003] kunit_try_run_case+0x1a5/0x480 [ 16.463177] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.463442] kthread+0x337/0x6f0 [ 16.463616] ret_from_fork+0x41/0x80 [ 16.463844] ret_from_fork_asm+0x1a/0x30 [ 16.464046] [ 16.464147] CPU: 1 UID: 0 PID: 315 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT(voluntary) [ 16.464701] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.464927] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.465214] ================================================================== [ 16.560095] ================================================================== [ 16.560627] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 16.560627] [ 16.561150] Use-after-free read at 0x(____ptrval____) (in kfence-#75): [ 16.561384] test_use_after_free_read+0x129/0x270 [ 16.561616] kunit_try_run_case+0x1a5/0x480 [ 16.561784] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.562039] kthread+0x337/0x6f0 [ 16.562159] ret_from_fork+0x41/0x80 [ 16.562384] ret_from_fork_asm+0x1a/0x30 [ 16.562600] [ 16.562700] kfence-#75: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 16.562700] [ 16.563030] allocated by task 317 on cpu 0 at 16.559954s (0.003074s ago): [ 16.563260] test_alloc+0x2a6/0x10f0 [ 16.563551] test_use_after_free_read+0xdc/0x270 [ 16.563793] kunit_try_run_case+0x1a5/0x480 [ 16.564019] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.564303] kthread+0x337/0x6f0 [ 16.564691] ret_from_fork+0x41/0x80 [ 16.565001] ret_from_fork_asm+0x1a/0x30 [ 16.565832] [ 16.565939] freed by task 317 on cpu 0 at 16.560001s (0.005935s ago): [ 16.566264] test_use_after_free_read+0xfb/0x270 [ 16.566670] kunit_try_run_case+0x1a5/0x480 [ 16.566877] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.567259] kthread+0x337/0x6f0 [ 16.567560] ret_from_fork+0x41/0x80 [ 16.567765] ret_from_fork_asm+0x1a/0x30 [ 16.568070] [ 16.568218] CPU: 0 UID: 0 PID: 317 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT(voluntary) [ 16.568838] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.569052] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.569645] ==================================================================