FKIE_CVE-2023-54142

Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-08-04 10:19
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: gtp: Fix use-after-free in __gtp_encap_destroy(). syzkaller reported use-after-free in __gtp_encap_destroy(). [0] It shows the same process freed sk and touched it illegally. Commit e198987e7dd7 ("gtp: fix suspicious RCU usage") added lock_sock() and release_sock() in __gtp_encap_destroy() to protect sk->sk_user_data, but release_sock() is called after sock_put() releases the last refcnt. [0]: BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: slab-use-after-free in atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:541 [inline] BUG: KASAN: slab-use-after-free in queued_spin_lock include/asm-generic/qspinlock.h:111 [inline] BUG: KASAN: slab-use-after-free in do_raw_spin_lock include/linux/spinlock.h:186 [inline] BUG: KASAN: slab-use-after-free in __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline] BUG: KASAN: slab-use-after-free in _raw_spin_lock_bh+0x75/0xe0 kernel/locking/spinlock.c:178 Write of size 4 at addr ffff88800dbef398 by task syz-executor.2/2401 CPU: 1 PID: 2401 Comm: syz-executor.2 Not tainted 6.4.0-rc5-01219-gfa0e21fa4443 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x72/0xa0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:351 [inline] print_report+0xcc/0x620 mm/kasan/report.c:462 kasan_report+0xb2/0xe0 mm/kasan/report.c:572 check_region_inline mm/kasan/generic.c:181 [inline] kasan_check_range+0x39/0x1c0 mm/kasan/generic.c:187 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:541 [inline] queued_spin_lock include/asm-generic/qspinlock.h:111 [inline] do_raw_spin_lock include/linux/spinlock.h:186 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline] _raw_spin_lock_bh+0x75/0xe0 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:355 [inline] release_sock+0x1f/0x1a0 net/core/sock.c:3526 gtp_encap_disable_sock drivers/net/gtp.c:651 [inline] gtp_encap_disable+0xb9/0x220 drivers/net/gtp.c:664 gtp_dev_uninit+0x19/0x50 drivers/net/gtp.c:728 unregister_netdevice_many_notify+0x97e/0x1520 net/core/dev.c:10841 rtnl_delete_link net/core/rtnetlink.c:3216 [inline] rtnl_dellink+0x3c0/0xb30 net/core/rtnetlink.c:3268 rtnetlink_rcv_msg+0x450/0xb10 net/core/rtnetlink.c:6423 netlink_rcv_skb+0x15d/0x450 net/netlink/af_netlink.c:2548 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x700/0x930 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x91c/0xe30 net/netlink/af_netlink.c:1913 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg+0x1b7/0x200 net/socket.c:747 ____sys_sendmsg+0x75a/0x990 net/socket.c:2493 ___sys_sendmsg+0x11d/0x1c0 net/socket.c:2547 __sys_sendmsg+0xfe/0x1d0 net/socket.c:2576 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3f/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f1168b1fe5d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48 RSP: 002b:00007f1167edccc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004bbf80 RCX: 00007f1168b1fe5d RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000003 RBP: 00000000004bbf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f1168b80530 R15: 0000000000000000 </TASK> Allocated by task 1483: kasan_save_stack+0x22/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 __kasan_slab_alloc+0x ---truncated---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/17d6b6354f0025b7c10a56da783fd0cbb3819c5d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58fa341327fdb4bdf92597fd8796a9abc8d20ea3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9c9662e2512b5e4ee7b03108802c5222e0fa77a4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bccc7ace12e69dee4684a3bb4b69737972e570d6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce3aee7114c575fab32a5e9e939d4bbb3dcca79f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d38039697184aacff1cf576e14ef583112fdefef
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dae6095bdb24f537b4798ffd9201515b97bac94e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e5aa6d829831a55a693dbaeb58f8d22ba7f2b3e6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ebd6d2077a083329110695a996c00e8ca94bc640
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/gtp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d38039697184aacff1cf576e14ef583112fdefef",
              "status": "affected",
              "version": "01f3c64e405ab3d25887d080a103ad76f30661d2",
              "versionType": "git"
            },
            {
              "lessThan": "e5aa6d829831a55a693dbaeb58f8d22ba7f2b3e6",
              "status": "affected",
              "version": "e117a04133c673cc54292e12086a8177cd9bd4a4",
              "versionType": "git"
            },
            {
              "lessThan": "9c9662e2512b5e4ee7b03108802c5222e0fa77a4",
              "status": "affected",
              "version": "e198987e7dd7d3645a53875151cd6f8fc425b706",
              "versionType": "git"
            },
            {
              "lessThan": "bccc7ace12e69dee4684a3bb4b69737972e570d6",
              "status": "affected",
              "version": "e198987e7dd7d3645a53875151cd6f8fc425b706",
              "versionType": "git"
            },
            {
              "lessThan": "ebd6d2077a083329110695a996c00e8ca94bc640",
              "status": "affected",
              "version": "e198987e7dd7d3645a53875151cd6f8fc425b706",
              "versionType": "git"
            },
            {
              "lessThan": "17d6b6354f0025b7c10a56da783fd0cbb3819c5d",
              "status": "affected",
              "version": "e198987e7dd7d3645a53875151cd6f8fc425b706",
              "versionType": "git"
            },
            {
              "lessThan": "dae6095bdb24f537b4798ffd9201515b97bac94e",
              "status": "affected",
              "version": "e198987e7dd7d3645a53875151cd6f8fc425b706",
              "versionType": "git"
            },
            {
              "lessThan": "58fa341327fdb4bdf92597fd8796a9abc8d20ea3",
              "status": "affected",
              "version": "e198987e7dd7d3645a53875151cd6f8fc425b706",
              "versionType": "git"
            },
            {
              "lessThan": "ce3aee7114c575fab32a5e9e939d4bbb3dcca79f",
              "status": "affected",
              "version": "e198987e7dd7d3645a53875151cd6f8fc425b706",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bf75202df8e473d4ee914894542f213158066d8b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "76357f65f18f180f44ccbbbf713461881d0ab219",
              "versionType": "git"
            },
            {
              "lessThan": "4.14.322",
              "status": "affected",
              "version": "4.14.135",
              "versionType": "semver"
            },
            {
              "lessThan": "4.19.291",
              "status": "affected",
              "version": "4.19.61",
              "versionType": "semver"
            },
            {
              "lessThan": "5.2",
              "status": "affected",
              "version": "5.1.20",
              "versionType": "semver"
            },
            {
              "lessThan": "5.3",
              "status": "affected",
              "version": "5.2.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/gtp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.322",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.291",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.251",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngtp: Fix use-after-free in __gtp_encap_destroy().\n\nsyzkaller reported use-after-free in __gtp_encap_destroy(). [0]\n\nIt shows the same process freed sk and touched it illegally.\n\nCommit e198987e7dd7 (\"gtp: fix suspicious RCU usage\") added lock_sock()\nand release_sock() in __gtp_encap_destroy() to protect sk-\u003esk_user_data,\nbut release_sock() is called after sock_put() releases the last refcnt.\n\n[0]:\nBUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]\nBUG: KASAN: slab-use-after-free in atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:541 [inline]\nBUG: KASAN: slab-use-after-free in queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]\nBUG: KASAN: slab-use-after-free in do_raw_spin_lock include/linux/spinlock.h:186 [inline]\nBUG: KASAN: slab-use-after-free in __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline]\nBUG: KASAN: slab-use-after-free in _raw_spin_lock_bh+0x75/0xe0 kernel/locking/spinlock.c:178\nWrite of size 4 at addr ffff88800dbef398 by task syz-executor.2/2401\n\nCPU: 1 PID: 2401 Comm: syz-executor.2 Not tainted 6.4.0-rc5-01219-gfa0e21fa4443 #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x72/0xa0 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:351 [inline]\n print_report+0xcc/0x620 mm/kasan/report.c:462\n kasan_report+0xb2/0xe0 mm/kasan/report.c:572\n check_region_inline mm/kasan/generic.c:181 [inline]\n kasan_check_range+0x39/0x1c0 mm/kasan/generic.c:187\n instrument_atomic_read_write include/linux/instrumented.h:96 [inline]\n atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:541 [inline]\n queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]\n do_raw_spin_lock include/linux/spinlock.h:186 [inline]\n __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline]\n _raw_spin_lock_bh+0x75/0xe0 kernel/locking/spinlock.c:178\n spin_lock_bh include/linux/spinlock.h:355 [inline]\n release_sock+0x1f/0x1a0 net/core/sock.c:3526\n gtp_encap_disable_sock drivers/net/gtp.c:651 [inline]\n gtp_encap_disable+0xb9/0x220 drivers/net/gtp.c:664\n gtp_dev_uninit+0x19/0x50 drivers/net/gtp.c:728\n unregister_netdevice_many_notify+0x97e/0x1520 net/core/dev.c:10841\n rtnl_delete_link net/core/rtnetlink.c:3216 [inline]\n rtnl_dellink+0x3c0/0xb30 net/core/rtnetlink.c:3268\n rtnetlink_rcv_msg+0x450/0xb10 net/core/rtnetlink.c:6423\n netlink_rcv_skb+0x15d/0x450 net/netlink/af_netlink.c:2548\n netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]\n netlink_unicast+0x700/0x930 net/netlink/af_netlink.c:1365\n netlink_sendmsg+0x91c/0xe30 net/netlink/af_netlink.c:1913\n sock_sendmsg_nosec net/socket.c:724 [inline]\n sock_sendmsg+0x1b7/0x200 net/socket.c:747\n ____sys_sendmsg+0x75a/0x990 net/socket.c:2493\n ___sys_sendmsg+0x11d/0x1c0 net/socket.c:2547\n __sys_sendmsg+0xfe/0x1d0 net/socket.c:2576\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3f/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\nRIP: 0033:0x7f1168b1fe5d\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\nRSP: 002b:00007f1167edccc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00000000004bbf80 RCX: 00007f1168b1fe5d\nRDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000003\nRBP: 00000000004bbf80 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 000000000000000b R14: 00007f1168b80530 R15: 0000000000000000\n \u003c/TASK\u003e\n\nAllocated by task 1483:\n kasan_save_stack+0x22/0x50 mm/kasan/common.c:45\n kasan_set_track+0x25/0x30 mm/kasan/common.c:52\n __kasan_slab_alloc+0x\n---truncated---"
    }
  ],
  "id": "CVE-2023-54142",
  "lastModified": "2026-08-04T10:19:31.350",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-24T13:16:16.200",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/17d6b6354f0025b7c10a56da783fd0cbb3819c5d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/58fa341327fdb4bdf92597fd8796a9abc8d20ea3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9c9662e2512b5e4ee7b03108802c5222e0fa77a4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bccc7ace12e69dee4684a3bb4b69737972e570d6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ce3aee7114c575fab32a5e9e939d4bbb3dcca79f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d38039697184aacff1cf576e14ef583112fdefef"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dae6095bdb24f537b4798ffd9201515b97bac94e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e5aa6d829831a55a693dbaeb58f8d22ba7f2b3e6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ebd6d2077a083329110695a996c00e8ca94bc640"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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