Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/08/09 | linux-5.15.y (ToT) | 7e89efd3ae1c | C | [report] KASAN: use-after-free Read in consume_skb |
2024/08/09 | upstream (ToT) | ee9a43b7cfe2 | C | Didn't crash |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/08/09 | linux-5.15.y (ToT) | 7e89efd3ae1c | C | [report] KASAN: use-after-free Read in consume_skb |
2024/08/09 | upstream (ToT) | ee9a43b7cfe2 | C | Didn't crash |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
android-5-15 | KASAN: use-after-free Read in consume_skb origin:lts | C | 29 | 18h17m | 390d | 0/2 | upstream: reported C repro on 2023/09/21 02:29 | ||
android-6-1 | KASAN: use-after-free Read in consume_skb | C | error | done | 4 | 343d | 402d | 0/2 | auto-obsoleted due to no activity on 2024/02/15 15:09 |
upstream | KASAN: use-after-free Read in consume_skb bpf net | C | done | inconclusive | 33 | 822d | 1101d | 0/28 | closed as invalid on 2022/10/12 18:37 |
upstream | KASAN: slab-use-after-free Read in consume_skb net bpf | C | error | 6 | 405d | 406d | 0/28 | closed as invalid on 2023/10/04 10:50 |
================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] BUG: KASAN: use-after-free in refcount_read include/linux/refcount.h:147 [inline] BUG: KASAN: use-after-free in skb_unref include/linux/skbuff.h:1107 [inline] BUG: KASAN: use-after-free in consume_skb+0x35/0x140 net/core/skbuff.c:910 Read of size 4 at addr ffff888070ce30dc by task kworker/1:4/3568 CPU: 1 PID: 3568 Comm: kworker/1:4 Not tainted 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: events sk_psock_destroy Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] refcount_read include/linux/refcount.h:147 [inline] skb_unref include/linux/skbuff.h:1107 [inline] consume_skb+0x35/0x140 net/core/skbuff.c:910 __sk_msg_free+0x2cd/0x350 net/core/skmsg.c:205 sk_msg_free net/core/skmsg.c:218 [inline] __sk_psock_purge_ingress_msg net/core/skmsg.c:764 [inline] __sk_psock_zap_ingress net/core/skmsg.c:777 [inline] sk_psock_destroy+0x3ab/0x870 net/core/skmsg.c:809 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 </TASK> Allocated by task 3567: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233 skb_clone+0x1bb/0x350 net/core/skbuff.c:1523 sk_psock_verdict_recv+0x51/0x5b0 net/core/skmsg.c:1176 unix_read_sock+0x124/0x360 net/unix/af_unix.c:2428 sk_psock_verdict_data_ready+0x147/0x1a0 net/core/skmsg.c:1219 unix_dgram_sendmsg+0x15fc/0x2090 net/unix/af_unix.c:1942 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2431 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2521 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Freed by task 3568: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kmem_cache_free+0x91/0x1f0 mm/slub.c:3515 kfree_skb include/linux/skbuff.h:1123 [inline] sock_drop include/linux/skmsg.h:313 [inline] __sk_psock_zap_ingress net/core/skmsg.c:775 [inline] sk_psock_destroy+0x1a8/0x870 net/core/skmsg.c:809 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 The buggy address belongs to the object at ffff888070ce3000 which belongs to the cache skbuff_head_cache of size 232 The buggy address is located 220 bytes inside of 232-byte region [ffff888070ce3000, ffff888070ce30e8) The buggy address belongs to the page: page:ffffea0001c338c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x70ce3 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888016be4140 raw: 0000000000000000 00000000000c000c 00000001ffffffff 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 0x12a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 3567, ts 52315128637, free_ts 52314155286 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423 alloc_slab_page mm/slub.c:1775 [inline] allocate_slab mm/slub.c:1912 [inline] new_slab+0xbb/0x4b0 mm/slub.c:1975 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008 __slab_alloc mm/slub.c:3095 [inline] slab_alloc_node mm/slub.c:3186 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x18e/0x280 mm/slub.c:3233 skb_clone+0x1bb/0x350 net/core/skbuff.c:1523 sk_psock_verdict_recv+0x51/0x5b0 net/core/skmsg.c:1176 unix_read_sock+0x124/0x360 net/unix/af_unix.c:2428 sk_psock_verdict_data_ready+0x147/0x1a0 net/core/skmsg.c:1219 unix_dgram_sendmsg+0x15fc/0x2090 net/unix/af_unix.c:1942 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2431 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2521 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 __vunmap+0x8d4/0xa20 mm/vmalloc.c:2621 adjust_insn_aux_data kernel/bpf/verifier.c:12050 [inline] bpf_patch_insn_data+0x828/0xe00 kernel/bpf/verifier.c:12103 convert_ctx_accesses kernel/bpf/verifier.c:12645 [inline] bpf_check+0x5ffd/0x12d00 kernel/bpf/verifier.c:14142 bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2353 __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4651 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline] __se_sys_bpf kernel/bpf/syscall.c:4753 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Memory state around the buggy address: ffff888070ce2f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888070ce3000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888070ce3080: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ^ ffff888070ce3100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ffff888070ce3180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/09 10:12 | linux-5.15.y | 7e89efd3ae1c | 61405512 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | KASAN: use-after-free Read in consume_skb | |
2024/08/30 00:21 | linux-5.15.y | fa93fa65db6e | 9bd464fc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | KASAN: use-after-free Read in consume_skb | ||
2024/08/09 08:32 | linux-5.15.y | 7e89efd3ae1c | 61405512 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | KASAN: use-after-free Read in consume_skb |