------------[ cut here ]------------ WARNING: CPU: 1 PID: 9010 at net/tls/tls_strp.c:493 tls_strp_msg_load+0x5ac/0x82c net/tls/tls_strp.c:493 Modules linked in: CPU: 1 PID: 9010 Comm: syz.7.1102 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : tls_strp_msg_load+0x5ac/0x82c net/tls/tls_strp.c:493 lr : tls_strp_msg_load+0x5ac/0x82c net/tls/tls_strp.c:493 sp : ffff800022a772e0 x29: ffff800022a77360 x28: 1fffe0001a1ea89b x27: 1fffe0001a1ea89b x26: ffff70000454ee60 x25: dfff800000000000 x24: ffff0000d0f544dc x23: 0000000000000000 x22: 000000000000001e x21: ffff0000d31549e0 x20: ffff0000d0f544d0 x19: ffff0000d0f544d8 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff800011b90080 x15: 0000000000000002 x14: 0000000000000002 x13: 1ffff0000454eeca x12: 0000000000080000 x11: 000000000000102b x10: ffff80002197b000 x9 : ffff8000108900fc x8 : 000000000000102c x7 : 0000000000000000 x6 : ffff800022a7761c x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 000000000000001e x0 : 0000000000000000 Call trace: tls_strp_msg_load+0x5ac/0x82c net/tls/tls_strp.c:493 tls_rx_rec_wait+0x784/0x8c0 net/tls/tls_sw.c:1513 tls_sw_recvmsg+0x554/0x181c net/tls/tls_sw.c:2170 inet_recvmsg+0x118/0x1c8 net/ipv4/af_inet.c:890 ____sys_recvmsg+0x270/0x754 net/socket.c:-1 ___sys_recvmsg net/socket.c:2780 [inline] do_recvmmsg+0x36c/0x9d8 net/socket.c:2874 __sys_recvmmsg net/socket.c:2953 [inline] __do_sys_recvmmsg net/socket.c:2976 [inline] __se_sys_recvmmsg net/socket.c:2969 [inline] __arm64_sys_recvmmsg+0x184/0x244 net/socket.c:2969 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 782 hardirqs last enabled at (781): [] __local_bh_enable_ip+0x1f8/0x37c kernel/softirq.c:426 hardirqs last disabled at (782): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (780): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (780): [] lock_sock_nested+0xe0/0x130 net/core/sock.c:3512 softirqs last disabled at (778): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (778): [] lock_sock_nested+0x88/0x130 net/core/sock.c:3508 ---[ end trace 0000000000000000 ]--- ================================================================== BUG: KASAN: use-after-free in __skb_nsg+0x474/0x504 net/tls/tls_sw.c:126 Read of size 4 at addr ffff0000de617060 by task syz.7.1102/9010 CPU: 0 PID: 9010 Comm: syz.7.1102 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 print_address_description+0x88/0x218 mm/kasan/report.c:316 print_report+0x50/0x68 mm/kasan/report.c:420 kasan_report+0xa8/0xfc mm/kasan/report.c:524 __asan_report_load4_noabort+0x2c/0x38 mm/kasan/report_generic.c:350 __skb_nsg+0x474/0x504 net/tls/tls_sw.c:126 skb_nsg net/tls/tls_sw.c:153 [inline] tls_decrypt_sg+0x268/0x27c8 net/tls/tls_sw.c:1636 tls_decrypt_sw+0xb8/0x9e0 net/tls/tls_sw.c:1798 tls_rx_one_record+0x164/0xc18 net/tls/tls_sw.c:1889 tls_sw_recvmsg+0x7e8/0x181c net/tls/tls_sw.c:2202 inet_recvmsg+0x118/0x1c8 net/ipv4/af_inet.c:890 ____sys_recvmsg+0x270/0x754 net/socket.c:-1 ___sys_recvmsg net/socket.c:2780 [inline] do_recvmmsg+0x36c/0x9d8 net/socket.c:2874 __sys_recvmmsg net/socket.c:2953 [inline] __do_sys_recvmmsg net/socket.c:2976 [inline] __se_sys_recvmmsg net/socket.c:2969 [inline] __arm64_sys_recvmmsg+0x184/0x244 net/socket.c:2969 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Allocated by task 9012: kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:53 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505 __kasan_slab_alloc+0x70/0x88 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x74/0x430 mm/slab.h:737 slab_alloc_node mm/slub.c:3359 [inline] kmem_cache_alloc_node+0x258/0x344 mm/slub.c:3404 __alloc_skb+0x128/0x728 net/core/skbuff.c:505 alloc_skb_fclone include/linux/skbuff.h:1353 [inline] tcp_stream_alloc_skb+0x48/0x2d8 net/ipv4/tcp.c:873 tcp_build_frag net/ipv4/tcp.c:998 [inline] do_tcp_sendpages+0x798/0x22dc net/ipv4/tcp.c:1087 tls_push_sg+0x128/0x6e4 net/tls/tls_main.c:150 tls_tx_records+0x2bc/0x4b8 net/tls/tls_sw.c:445 tls_push_record+0x1860/0x2d78 net/tls/tls_sw.c:865 bpf_exec_tx_verdict+0xc88/0x1258 net/tls/tls_sw.c:885 tls_sw_sendmsg+0xabc/0x14d4 net/tls/tls_sw.c:1120 inet_sendmsg+0x154/0x27c net/ipv4/af_inet.c:841 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] __sys_sendto+0x324/0x440 net/socket.c:2153 __do_sys_sendto net/socket.c:2165 [inline] __se_sys_sendto net/socket.c:2161 [inline] __arm64_sys_sendto+0xe4/0x104 net/socket.c:2161 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Freed by task 9010: kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:53 kasan_save_free_info+0x38/0x5c mm/kasan/generic.c:516 ____kasan_slab_free+0x148/0x1b0 mm/kasan/common.c:237 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:245 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1729 [inline] slab_free_freelist_hook+0x16c/0x1e8 mm/slub.c:1755 slab_free mm/slub.c:3687 [inline] kmem_cache_free+0x118/0x318 mm/slub.c:3709 kfree_skbmem+0x10c/0x198 net/core/skbuff.c:-1 __kfree_skb net/core/skbuff.c:871 [inline] skb_attempt_defer_free+0x268/0x40c net/core/skbuff.c:6714 tcp_eat_recv_skb net/ipv4/tcp.c:1665 [inline] tcp_recvmsg_locked+0xd6c/0x1c1c net/ipv4/tcp.c:2678 tcp_recvmsg+0x194/0x67c net/ipv4/tcp.c:2724 inet_recvmsg+0x118/0x1c8 net/ipv4/af_inet.c:890 ____sys_recvmsg+0x270/0x754 net/socket.c:-1 ___sys_recvmsg net/socket.c:2780 [inline] do_recvmmsg+0x36c/0x9d8 net/socket.c:2874 __sys_recvmmsg net/socket.c:2953 [inline] __do_sys_recvmmsg net/socket.c:2976 [inline] __se_sys_recvmmsg net/socket.c:2969 [inline] __arm64_sys_recvmmsg+0x184/0x244 net/socket.c:2969 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 The buggy address belongs to the object at ffff0000de616f00 which belongs to the cache skbuff_fclone_cache of size 488 The buggy address is located 352 bytes inside of 488-byte region [ffff0000de616f00, ffff0000de6170e8) The buggy address belongs to the physical page: page:000000006c873299 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11e616 head:000000006c873299 order:1 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 0000000000000000 dead000000000001 ffff0000c0864300 raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000de616f00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000de616f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff0000de617000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000de617080: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ffff0000de617100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9010 at net/core/skbuff.c:4603 __skb_to_sgvec+0x540/0x900 net/core/skbuff.c:4603 Modules linked in: CPU: 1 PID: 9010 Comm: syz.7.1102 Tainted: G B W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __skb_to_sgvec+0x540/0x900 net/core/skbuff.c:4603 lr : __skb_to_sgvec+0x540/0x900 net/core/skbuff.c:4603 sp : ffff800022a76f40 x29: ffff800022a76f90 x28: 1fffe0003ff4dc19 x27: ffff0000f5b58908 x26: dfff800000000000 x25: ffff0001ffa6e0d0 x24: 0000000000000000 x23: 000000000000000d x22: ffff0001ffa6e0cc x21: 0000000000000000 x20: 00000000fffffff1 x19: 00000000ffffffe4 x18: 1fffe00033e7697e x17: 0000000000fe010c x16: ffff800011b90080 x15: 0000000000000002 x14: 0000000000000008 x13: 1fffe0001eb6b11d x12: 0000000000080000 x11: 0000000000053cd6 x10: ffff80002197b000 x9 : ffff80000feb61f8 x8 : 0000000000053cd7 x7 : 0000000000000000 x6 : 7856341278563412 x5 : ffff0000f5b588a0 x4 : 0000000000000000 x3 : 00000000ffffffe4 x2 : 000000000000000d x1 : 00000000fffffff1 x0 : 0000000000000000 Call trace: __skb_to_sgvec+0x540/0x900 net/core/skbuff.c:4603 skb_to_sgvec+0x40/0xb4 net/core/skbuff.c:4664 tls_decrypt_sg+0xe6c/0x27c8 net/tls/tls_sw.c:1727 tls_decrypt_sw+0xb8/0x9e0 net/tls/tls_sw.c:1798 tls_rx_one_record+0x164/0xc18 net/tls/tls_sw.c:1889 tls_sw_recvmsg+0x7e8/0x181c net/tls/tls_sw.c:2202 inet_recvmsg+0x118/0x1c8 net/ipv4/af_inet.c:890 ____sys_recvmsg+0x270/0x754 net/socket.c:-1 ___sys_recvmsg net/socket.c:2780 [inline] do_recvmmsg+0x36c/0x9d8 net/socket.c:2874 __sys_recvmmsg net/socket.c:2953 [inline] __do_sys_recvmmsg net/socket.c:2976 [inline] __se_sys_recvmmsg net/socket.c:2969 [inline] __arm64_sys_recvmmsg+0x184/0x244 net/socket.c:2969 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 1159 hardirqs last enabled at (1159): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] hardirqs last enabled at (1159): [] finish_lock_switch+0xb0/0x1c8 kernel/sched/core.c:5005 hardirqs last disabled at (1158): [] __schedule+0x294/0x1a6c kernel/sched/core.c:6461 softirqs last enabled at (1142): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1142): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (785): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:4646! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 9010 Comm: syz.7.1102 Tainted: G B W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __skb_to_sgvec+0x8fc/0x900 net/core/skbuff.c:4646 lr : __skb_to_sgvec+0x8fc/0x900 net/core/skbuff.c:4646 sp : ffff800022a76f40 x29: ffff800022a76f90 x28: 1fffe0003ff4dc19 x27: ffff0000f5b58908 x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000000 x23: 000000000000000d x22: ffff0001ffa6e0cc x21: 0000000000000001 x20: ffff0000f39b6cc0 x19: 00000000ffffffe4 x18: 1fffe00033e7697e x17: 0000000000fe010c x16: ffff800011b90080 x15: 0000000000000002 x14: 0000000000000008 x13: 1fffe0001eb6b11d x12: 0000000000080000 x11: 0000000000074ff3 x10: ffff80002197b000 x9 : ffff80000feb65b4 x8 : 0000000000074ff4 x7 : 0000000000000000 x6 : 7856341278563412 x5 : ffff0000f5b588a0 x4 : 0000000000000000 x3 : 00000000ffffffe4 x2 : 000000000000000d x1 : 00000000ffffffe4 x0 : 0000000000000000 Call trace: __skb_to_sgvec+0x8fc/0x900 net/core/skbuff.c:4646 skb_to_sgvec+0x40/0xb4 net/core/skbuff.c:4664 tls_decrypt_sg+0xe6c/0x27c8 net/tls/tls_sw.c:1727 tls_decrypt_sw+0xb8/0x9e0 net/tls/tls_sw.c:1798 tls_rx_one_record+0x164/0xc18 net/tls/tls_sw.c:1889 tls_sw_recvmsg+0x7e8/0x181c net/tls/tls_sw.c:2202 inet_recvmsg+0x118/0x1c8 net/ipv4/af_inet.c:890 ____sys_recvmsg+0x270/0x754 net/socket.c:-1 ___sys_recvmsg net/socket.c:2780 [inline] do_recvmmsg+0x36c/0x9d8 net/socket.c:2874 __sys_recvmmsg net/socket.c:2953 [inline] __do_sys_recvmmsg net/socket.c:2976 [inline] __se_sys_recvmmsg net/socket.c:2969 [inline] __arm64_sys_recvmmsg+0x184/0x244 net/socket.c:2969 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: d4210000 9617f187 d4210000 9617f185 (d4210000) ---[ end trace 0000000000000000 ]---