Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.712693] ================================================================== [ 19.712817] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 19.712817] [ 19.712910] Use-after-free read at 0x0000000049ba45af (in kfence-#85): [ 19.713174] test_use_after_free_read+0x114/0x248 [ 19.713248] kunit_try_run_case+0x170/0x3f0 [ 19.713300] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.713343] kthread+0x328/0x630 [ 19.713579] ret_from_fork+0x10/0x20 [ 19.713715] [ 19.713749] kfence-#85: 0x0000000049ba45af-0x00000000d101b7c8, size=32, cache=kmalloc-32 [ 19.713749] [ 19.713806] allocated by task 295 on cpu 0 at 19.712018s (0.001783s ago): [ 19.713877] test_alloc+0x29c/0x628 [ 19.713918] test_use_after_free_read+0xd0/0x248 [ 19.713959] kunit_try_run_case+0x170/0x3f0 [ 19.714009] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.714051] kthread+0x328/0x630 [ 19.714088] ret_from_fork+0x10/0x20 [ 19.714125] [ 19.714150] freed by task 295 on cpu 0 at 19.712343s (0.001803s ago): [ 19.714222] test_use_after_free_read+0x1c0/0x248 [ 19.714265] kunit_try_run_case+0x170/0x3f0 [ 19.714305] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.714347] kthread+0x328/0x630 [ 19.714381] ret_from_fork+0x10/0x20 [ 19.714419] [ 19.714464] CPU: 0 UID: 0 PID: 295 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 19.714543] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.714572] Hardware name: linux,dummy-virt (DT) [ 19.714608] ================================================================== [ 19.822486] ================================================================== [ 19.823153] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 19.823153] [ 19.823294] Use-after-free read at 0x00000000c38d06e6 (in kfence-#86): [ 19.823433] test_use_after_free_read+0x114/0x248 [ 19.823770] kunit_try_run_case+0x170/0x3f0 [ 19.823879] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.823940] kthread+0x328/0x630 [ 19.824345] ret_from_fork+0x10/0x20 [ 19.824724] [ 19.824793] kfence-#86: 0x00000000c38d06e6-0x0000000027fed03b, size=32, cache=test [ 19.824793] [ 19.824871] allocated by task 297 on cpu 0 at 19.821916s (0.002952s ago): [ 19.825257] test_alloc+0x230/0x628 [ 19.825326] test_use_after_free_read+0xd0/0x248 [ 19.825432] kunit_try_run_case+0x170/0x3f0 [ 19.825990] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.826249] kthread+0x328/0x630 [ 19.826375] ret_from_fork+0x10/0x20 [ 19.826430] [ 19.826456] freed by task 297 on cpu 0 at 19.821995s (0.004457s ago): [ 19.826879] test_use_after_free_read+0xf0/0x248 [ 19.826999] kunit_try_run_case+0x170/0x3f0 [ 19.827321] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.827420] kthread+0x328/0x630 [ 19.827503] ret_from_fork+0x10/0x20 [ 19.827624] [ 19.827864] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 19.828359] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.828406] Hardware name: linux,dummy-virt (DT) [ 19.828942] ==================================================================
[ 17.759827] ================================================================== [ 17.760244] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.760244] [ 17.760752] Use-after-free read at 0x(____ptrval____) (in kfence-#70): [ 17.761158] test_use_after_free_read+0x129/0x270 [ 17.761321] kunit_try_run_case+0x1a5/0x480 [ 17.761902] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.762166] kthread+0x337/0x6f0 [ 17.762335] ret_from_fork+0x116/0x1d0 [ 17.762513] ret_from_fork_asm+0x1a/0x30 [ 17.763145] [ 17.763241] kfence-#70: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 17.763241] [ 17.763622] allocated by task 315 on cpu 1 at 17.759646s (0.003974s ago): [ 17.764161] test_alloc+0x2a6/0x10f0 [ 17.764317] test_use_after_free_read+0xdc/0x270 [ 17.764548] kunit_try_run_case+0x1a5/0x480 [ 17.764747] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.765032] kthread+0x337/0x6f0 [ 17.765270] ret_from_fork+0x116/0x1d0 [ 17.765459] ret_from_fork_asm+0x1a/0x30 [ 17.765635] [ 17.765726] freed by task 315 on cpu 1 at 17.759695s (0.006028s ago): [ 17.766056] test_use_after_free_read+0xfb/0x270 [ 17.766274] kunit_try_run_case+0x1a5/0x480 [ 17.766479] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.766759] kthread+0x337/0x6f0 [ 17.766922] ret_from_fork+0x116/0x1d0 [ 17.767080] ret_from_fork_asm+0x1a/0x30 [ 17.767269] [ 17.767390] CPU: 1 UID: 0 PID: 315 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 17.767726] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.767864] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.768535] ================================================================== [ 17.655871] ================================================================== [ 17.656325] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.656325] [ 17.656725] Use-after-free read at 0x(____ptrval____) (in kfence-#69): [ 17.657086] test_use_after_free_read+0x129/0x270 [ 17.657300] kunit_try_run_case+0x1a5/0x480 [ 17.657832] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.658290] kthread+0x337/0x6f0 [ 17.658720] ret_from_fork+0x116/0x1d0 [ 17.658920] ret_from_fork_asm+0x1a/0x30 [ 17.659271] [ 17.659385] kfence-#69: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 17.659385] [ 17.659985] allocated by task 313 on cpu 0 at 17.655670s (0.004313s ago): [ 17.660503] test_alloc+0x364/0x10f0 [ 17.660810] test_use_after_free_read+0xdc/0x270 [ 17.661075] kunit_try_run_case+0x1a5/0x480 [ 17.661417] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.661652] kthread+0x337/0x6f0 [ 17.661879] ret_from_fork+0x116/0x1d0 [ 17.662323] ret_from_fork_asm+0x1a/0x30 [ 17.662637] [ 17.662914] freed by task 313 on cpu 0 at 17.655720s (0.007093s ago): [ 17.663269] test_use_after_free_read+0x1e7/0x270 [ 17.663475] kunit_try_run_case+0x1a5/0x480 [ 17.663983] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.664233] kthread+0x337/0x6f0 [ 17.664476] ret_from_fork+0x116/0x1d0 [ 17.664799] ret_from_fork_asm+0x1a/0x30 [ 17.665028] [ 17.665299] CPU: 0 UID: 0 PID: 313 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 17.665870] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.666142] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.666620] ==================================================================