KASAN: invalid-free in rcu_free_sheaf

Status: upstream: reported on 2026/06/12 20:43
Subsystems: fs netfilter
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+60332fd095f8bb2946ad@syzkaller.appspotmail.com
Fix commit: 979d5b8de8ed ieee802154: hwsim: serialize pib updates to fix double-free
Patched on: [ci-qemu-gce-upstream-auto ci-qemu-native-arm64-kvm ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-snapshot-upstream-root ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci-upstream-rust-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce], missing on: [ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root ci2-upstream-usb]
First crash: 113d, last: 2h54m
▶ ▼ ✨ AI Jobs (2)
ID Workflow Result Correct Bug Created Started Finished Revision
53da1bc0 repro-c 💥 KASAN: invalid-free in rcu_free_sheaf 2026/08/07 14:02 2026/08/07 22:10 2026/08/08 04:45 e4ef95d6
fb1c2244 assessment-security DenialOfService: ✅ Exploitable: ✅ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ✅ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ KASAN: invalid-free in rcu_free_sheaf 2026/06/10 06:10 2026/06/10 06:10 2026/06/10 06:52 34dab4be
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[PATCH] ieee802154: hwsim: serialize pib updates to fix double-free 4 (4) 2026/09/02 08:28
[syzbot] Monthly netfilter report (Sep 2026) 0 (1) 2026/09/01 20:33
[syzbot] [mm?] KASAN: invalid-free in rcu_free_sheaf 0 (1) 2026/06/12 20:43

Sample crash report:
==================================================================
BUG: KASAN: double-free in rcu_free_sheaf+0x31/0x200 mm/slub.c:6060
Free of addr ffff8880379ae300 by task ksoftirqd/0/15

CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description+0x55/0x1e0 mm/kasan/report.c:378
 print_report+0x58/0x70 mm/kasan/report.c:482
 kasan_report_invalid_free+0xea/0x110 mm/kasan/report.c:557
 check_slab_allocation mm/kasan/common.c:-1 [inline]
 __kasan_slab_pre_free+0x104/0x120 mm/kasan/common.c:261
 kasan_slab_pre_free include/linux/kasan.h:199 [inline]
 slab_free_hook mm/slub.c:2693 [inline]
 __rcu_free_sheaf_prepare+0x10a/0x2a0 mm/slub.c:3009
 rcu_free_sheaf+0x31/0x200 mm/slub.c:6060
 rcu_do_batch kernel/rcu/tree.c:2650 [inline]
 rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1099
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 6331:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x321/0x600 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 hwsim_update_pib+0x7e/0x400 drivers/net/ieee802154/mac802154_hwsim.c:103
 hwsim_set_promiscuous_mode+0x196/0x2e0 drivers/net/ieee802154/mac802154_hwsim.c:326
 drv_set_promiscuous_mode+0x159/0x2e0 net/mac802154/driver-ops.h:127
 drv_start+0x4ea/0x1010 net/mac802154/driver-ops.h:167
 mac802154_scan_worker+0x8e6/0xe60 net/mac802154/scan.c:248
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 15:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 __rcu_free_sheaf_prepare+0x12d/0x2a0 mm/slub.c:3009
 rcu_free_sheaf+0x31/0x200 mm/slub.c:6060
 rcu_do_batch kernel/rcu/tree.c:2650 [inline]
 rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1099
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff8880379ae300
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 0 bytes inside of
 64-byte region [ffff8880379ae300, ffff8880379ae340)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x379ae
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b0418c0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000200020 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 14681, tgid 14680 (syz.1.1897), ts 902688884763
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab+0x7d/0x620 mm/slub.c:3462
 new_slab mm/slub.c:3513 [inline]
 refill_objects+0x2d5/0x350 mm/slub.c:7417
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kvmalloc_node_noprof+0x63c/0x820 mm/slub.c:7014
 f2fs_kvmalloc fs/f2fs/f2fs.h:3779 [inline]
 f2fs_kvzalloc fs/f2fs/f2fs.h:3785 [inline]
 init_free_nid_cache fs/f2fs/node.c:3438 [inline]
 f2fs_build_node_manager+0x1120/0x2e30 fs/f2fs/node.c:3471
 f2fs_fill_super+0x4e68/0x7a60 fs/f2fs/super.c:5311
 get_tree_bdev_flags+0x430/0x4f0 fs/super.c:1873
 vfs_get_tree+0x92/0x2a0 fs/super.c:1933
 fc_mount fs/namespace.c:1198 [inline]
 do_new_mount_fc fs/namespace.c:3772 [inline]
 do_new_mount+0x319/0xdc0 fs/namespace.c:3848
 do_mount fs/namespace.c:4181 [inline]
 __do_sys_mount fs/namespace.c:4397 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4374
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 24 tgid 24 ts 902573579055 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
 __tlb_remove_table_free mm/mmu_gather.c:228 [inline]
 tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
 rcu_do_batch kernel/rcu/tree.c:2650 [inline]
 rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1099
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff8880379ae200: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
 ffff8880379ae280: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
>ffff8880379ae300: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
                   ^
 ffff8880379ae380: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff8880379ae400: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
==================================================================

Crashes (428):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/09/24 19:15 upstream 62f4c998b297 3c3cdf19 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: invalid-free in rcu_free_sheaf
2026/09/18 07:26 upstream 5dd1818b15d9 8d7d05f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: invalid-free in rcu_free_sheaf
2026/09/26 00:40 upstream f14572c203d5 f281d9d2 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: invalid-free in rcu_free_sheaf
2026/09/22 04:53 upstream 50d05c7c76c9 e12281bd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: invalid-free in rcu_free_sheaf
2026/09/28 16:11 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 01:09 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 23:14 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 21:12 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 18:54 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 17:41 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 17:36 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 11:38 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 06:28 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 05:01 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/06/22 03:06 net 1579342d7113 43bfcdb0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 20:10 net-next 6e23f90f2b8c 7808aef4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 17:59 net-next 087827628ad3 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 14:27 net-next 087827628ad3 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 11:55 net-next 087827628ad3 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 09:55 net-next 087827628ad3 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 09:00 net-next 087827628ad3 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 07:44 net-next 087827628ad3 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 05:53 net-next 087827628ad3 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 23:03 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 21:25 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 19:45 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 17:47 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 14:50 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 13:47 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 11:44 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 08:08 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 06:20 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 04:01 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/28 02:59 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 16:24 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 13:23 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 09:19 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 03:27 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 01:47 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/27 00:21 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 22:34 net-next 014d795c7383 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 18:08 net-next e3a46dde2398 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 16:28 net-next e3a46dde2398 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 13:54 net-next e3a46dde2398 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 11:26 net-next e3a46dde2398 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 08:45 net-next e3a46dde2398 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 07:29 net-next e3a46dde2398 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/26 03:01 net-next e3a46dde2398 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/25 23:33 net-next 42a9fb3382fc f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/25 20:36 net-next 42a9fb3382fc f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/25 19:07 net-next 42a9fb3382fc f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/06/11 22:03 net-next 0ce346bf2f68 d93a6ab6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/06/08 20:36 net-next 903db046d557 656e94c6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/29 00:20 linux-next 6375e61c01e9 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/09/25 16:55 linux-next 4c253ac4b29b f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: invalid-free in rcu_free_sheaf
2026/06/12 02:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 596d152bc5e3 e93da63e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 KASAN: invalid-free in rcu_free_sheaf
* Struck through repros no longer work on HEAD.