Date
July 6, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.822693] ================================================================== [ 22.822788] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 22.822788] [ 22.822953] Use-after-free read at 0x00000000cc7f0e75 (in kfence-#92): [ 22.823006] test_use_after_free_read+0x114/0x248 [ 22.823327] kunit_try_run_case+0x170/0x3f0 [ 22.823468] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.823557] kthread+0x328/0x630 [ 22.823602] ret_from_fork+0x10/0x20 [ 22.823696] [ 22.823724] kfence-#92: 0x00000000cc7f0e75-0x00000000c946a745, size=32, cache=test [ 22.823724] [ 22.823776] allocated by task 297 on cpu 0 at 22.822103s (0.001669s ago): [ 22.823845] test_alloc+0x230/0x628 [ 22.823885] test_use_after_free_read+0xd0/0x248 [ 22.823927] kunit_try_run_case+0x170/0x3f0 [ 22.823979] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.824028] kthread+0x328/0x630 [ 22.824065] ret_from_fork+0x10/0x20 [ 22.824103] [ 22.824133] freed by task 297 on cpu 0 at 22.822162s (0.001967s ago): [ 22.824251] test_use_after_free_read+0xf0/0x248 [ 22.824553] kunit_try_run_case+0x170/0x3f0 [ 22.824621] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.824667] kthread+0x328/0x630 [ 22.824702] ret_from_fork+0x10/0x20 [ 22.825330] [ 22.825499] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 22.825689] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.825793] Hardware name: linux,dummy-virt (DT) [ 22.825859] ================================================================== [ 22.719189] ================================================================== [ 22.719726] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 22.719726] [ 22.720148] Use-after-free read at 0x00000000a579c59c (in kfence-#91): [ 22.720263] test_use_after_free_read+0x114/0x248 [ 22.720441] kunit_try_run_case+0x170/0x3f0 [ 22.720502] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.720548] kthread+0x328/0x630 [ 22.720592] ret_from_fork+0x10/0x20 [ 22.720671] [ 22.720698] kfence-#91: 0x00000000a579c59c-0x0000000014bf1f98, size=32, cache=kmalloc-32 [ 22.720698] [ 22.720762] allocated by task 295 on cpu 0 at 22.718461s (0.002287s ago): [ 22.720831] test_alloc+0x29c/0x628 [ 22.720876] test_use_after_free_read+0xd0/0x248 [ 22.720927] kunit_try_run_case+0x170/0x3f0 [ 22.720967] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.721010] kthread+0x328/0x630 [ 22.721046] ret_from_fork+0x10/0x20 [ 22.721097] [ 22.721247] freed by task 295 on cpu 0 at 22.718532s (0.002616s ago): [ 22.721361] test_use_after_free_read+0x1c0/0x248 [ 22.721406] kunit_try_run_case+0x170/0x3f0 [ 22.721446] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.721489] kthread+0x328/0x630 [ 22.721524] ret_from_fork+0x10/0x20 [ 22.721574] [ 22.721639] CPU: 0 UID: 0 PID: 295 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 22.721718] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.721747] Hardware name: linux,dummy-virt (DT) [ 22.721788] ==================================================================
[ 17.136886] ================================================================== [ 17.137418] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.137418] [ 17.137800] Use-after-free read at 0x(____ptrval____) (in kfence-#72): [ 17.138199] test_use_after_free_read+0x129/0x270 [ 17.138789] kunit_try_run_case+0x1a5/0x480 [ 17.139282] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.139739] kthread+0x337/0x6f0 [ 17.139894] ret_from_fork+0x116/0x1d0 [ 17.140309] ret_from_fork_asm+0x1a/0x30 [ 17.140537] [ 17.140654] kfence-#72: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 17.140654] [ 17.141249] allocated by task 314 on cpu 0 at 17.136758s (0.004488s ago): [ 17.141722] test_alloc+0x2a6/0x10f0 [ 17.141903] test_use_after_free_read+0xdc/0x270 [ 17.142321] kunit_try_run_case+0x1a5/0x480 [ 17.142621] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.142878] kthread+0x337/0x6f0 [ 17.143218] ret_from_fork+0x116/0x1d0 [ 17.143500] ret_from_fork_asm+0x1a/0x30 [ 17.143719] [ 17.143823] freed by task 314 on cpu 0 at 17.136800s (0.007020s ago): [ 17.144358] test_use_after_free_read+0xfb/0x270 [ 17.144573] kunit_try_run_case+0x1a5/0x480 [ 17.144841] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.145234] kthread+0x337/0x6f0 [ 17.145488] ret_from_fork+0x116/0x1d0 [ 17.145690] ret_from_fork_asm+0x1a/0x30 [ 17.146016] [ 17.146276] CPU: 0 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 17.146740] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.147128] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.147613] ================================================================== [ 17.032994] ================================================================== [ 17.033429] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.033429] [ 17.033933] Use-after-free read at 0x(____ptrval____) (in kfence-#71): [ 17.034243] test_use_after_free_read+0x129/0x270 [ 17.034454] kunit_try_run_case+0x1a5/0x480 [ 17.034663] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.034846] kthread+0x337/0x6f0 [ 17.035045] ret_from_fork+0x116/0x1d0 [ 17.035288] ret_from_fork_asm+0x1a/0x30 [ 17.035552] [ 17.035662] kfence-#71: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 17.035662] [ 17.036051] allocated by task 312 on cpu 1 at 17.032748s (0.003301s ago): [ 17.036308] test_alloc+0x364/0x10f0 [ 17.036475] test_use_after_free_read+0xdc/0x270 [ 17.036706] kunit_try_run_case+0x1a5/0x480 [ 17.036925] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.037143] kthread+0x337/0x6f0 [ 17.037267] ret_from_fork+0x116/0x1d0 [ 17.037659] ret_from_fork_asm+0x1a/0x30 [ 17.037870] [ 17.038094] freed by task 312 on cpu 1 at 17.032819s (0.005195s ago): [ 17.038432] test_use_after_free_read+0x1e7/0x270 [ 17.038606] kunit_try_run_case+0x1a5/0x480 [ 17.038794] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.039062] kthread+0x337/0x6f0 [ 17.039242] ret_from_fork+0x116/0x1d0 [ 17.039509] ret_from_fork_asm+0x1a/0x30 [ 17.039686] [ 17.039791] CPU: 1 UID: 0 PID: 312 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 17.040365] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.040566] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.040916] ==================================================================