Date
July 18, 2025, 1:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 35.997205] ================================================================== [ 35.997318] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 35.997318] [ 35.997400] Use-after-free read at 0x0000000089c33237 (in kfence-#126): [ 35.997521] test_use_after_free_read+0x114/0x248 [ 35.997572] kunit_try_run_case+0x170/0x3f0 [ 35.997614] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.997939] kthread+0x328/0x630 [ 35.998009] ret_from_fork+0x10/0x20 [ 35.998067] [ 35.998104] kfence-#126: 0x0000000089c33237-0x0000000003f57add, size=32, cache=test [ 35.998104] [ 35.998155] allocated by task 328 on cpu 0 at 35.996730s (0.001421s ago): [ 35.998692] test_alloc+0x230/0x628 [ 35.998783] test_use_after_free_read+0xd0/0x248 [ 35.998829] kunit_try_run_case+0x170/0x3f0 [ 35.998928] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.998973] kthread+0x328/0x630 [ 35.999009] ret_from_fork+0x10/0x20 [ 35.999218] [ 35.999356] freed by task 328 on cpu 0 at 35.997061s (0.002287s ago): [ 35.999537] test_use_after_free_read+0xf0/0x248 [ 35.999604] kunit_try_run_case+0x170/0x3f0 [ 35.999650] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.999750] kthread+0x328/0x630 [ 35.999787] ret_from_fork+0x10/0x20 [ 35.999920] [ 36.000322] CPU: 0 UID: 0 PID: 328 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 36.000475] Tainted: [B]=BAD_PAGE, [N]=TEST [ 36.000600] Hardware name: linux,dummy-virt (DT) [ 36.000687] ================================================================== [ 35.893576] ================================================================== [ 35.893909] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 35.893909] [ 35.894308] Use-after-free read at 0x0000000017f7fd76 (in kfence-#125): [ 35.894431] test_use_after_free_read+0x114/0x248 [ 35.894485] kunit_try_run_case+0x170/0x3f0 [ 35.894543] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.894722] kthread+0x328/0x630 [ 35.894766] ret_from_fork+0x10/0x20 [ 35.895040] [ 35.895093] kfence-#125: 0x0000000017f7fd76-0x0000000018bd24b1, size=32, cache=kmalloc-32 [ 35.895093] [ 35.895168] allocated by task 326 on cpu 0 at 35.892729s (0.002417s ago): [ 35.895248] test_alloc+0x29c/0x628 [ 35.895530] test_use_after_free_read+0xd0/0x248 [ 35.895592] kunit_try_run_case+0x170/0x3f0 [ 35.895649] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.895815] kthread+0x328/0x630 [ 35.896041] ret_from_fork+0x10/0x20 [ 35.896134] [ 35.896759] freed by task 326 on cpu 0 at 35.892803s (0.003455s ago): [ 35.897367] test_use_after_free_read+0x1c0/0x248 [ 35.897528] kunit_try_run_case+0x170/0x3f0 [ 35.897599] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.897785] kthread+0x328/0x630 [ 35.897991] ret_from_fork+0x10/0x20 [ 35.898374] [ 35.898649] CPU: 0 UID: 0 PID: 326 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 35.898931] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.899095] Hardware name: linux,dummy-virt (DT) [ 35.899205] ==================================================================
[ 30.026274] ================================================================== [ 30.026692] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 30.026692] [ 30.027057] Use-after-free read at 0x(____ptrval____) (in kfence-#95): [ 30.027374] test_use_after_free_read+0x129/0x270 [ 30.027566] kunit_try_run_case+0x1a5/0x480 [ 30.027731] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.027987] kthread+0x337/0x6f0 [ 30.028153] ret_from_fork+0x116/0x1d0 [ 30.028343] ret_from_fork_asm+0x1a/0x30 [ 30.028517] [ 30.028586] kfence-#95: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 30.028586] [ 30.028976] allocated by task 345 on cpu 0 at 30.026119s (0.002855s ago): [ 30.029255] test_alloc+0x2a6/0x10f0 [ 30.029429] test_use_after_free_read+0xdc/0x270 [ 30.029627] kunit_try_run_case+0x1a5/0x480 [ 30.029809] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.029977] kthread+0x337/0x6f0 [ 30.030090] ret_from_fork+0x116/0x1d0 [ 30.030215] ret_from_fork_asm+0x1a/0x30 [ 30.030414] [ 30.030503] freed by task 345 on cpu 0 at 30.026181s (0.004320s ago): [ 30.030817] test_use_after_free_read+0xfb/0x270 [ 30.030971] kunit_try_run_case+0x1a5/0x480 [ 30.031113] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.031363] kthread+0x337/0x6f0 [ 30.031539] ret_from_fork+0x116/0x1d0 [ 30.031726] ret_from_fork_asm+0x1a/0x30 [ 30.031921] [ 30.032030] CPU: 0 UID: 0 PID: 345 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 30.032493] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.032668] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 30.033030] ================================================================== [ 29.922262] ================================================================== [ 29.922702] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 29.922702] [ 29.923248] Use-after-free read at 0x(____ptrval____) (in kfence-#94): [ 29.923502] test_use_after_free_read+0x129/0x270 [ 29.923726] kunit_try_run_case+0x1a5/0x480 [ 29.923937] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.924171] kthread+0x337/0x6f0 [ 29.924292] ret_from_fork+0x116/0x1d0 [ 29.924460] ret_from_fork_asm+0x1a/0x30 [ 29.924657] [ 29.924753] kfence-#94: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 29.924753] [ 29.925080] allocated by task 343 on cpu 1 at 29.922055s (0.003022s ago): [ 29.925383] test_alloc+0x364/0x10f0 [ 29.925571] test_use_after_free_read+0xdc/0x270 [ 29.925790] kunit_try_run_case+0x1a5/0x480 [ 29.925974] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.926163] kthread+0x337/0x6f0 [ 29.926279] ret_from_fork+0x116/0x1d0 [ 29.926416] ret_from_fork_asm+0x1a/0x30 [ 29.926564] [ 29.926654] freed by task 343 on cpu 1 at 29.922104s (0.004548s ago): [ 29.926954] test_use_after_free_read+0x1e7/0x270 [ 29.927173] kunit_try_run_case+0x1a5/0x480 [ 29.927339] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.927544] kthread+0x337/0x6f0 [ 29.927685] ret_from_fork+0x116/0x1d0 [ 29.927871] ret_from_fork_asm+0x1a/0x30 [ 29.928060] [ 29.928155] CPU: 1 UID: 0 PID: 343 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 29.928634] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.928810] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 29.929143] ==================================================================