{"api_version":"1","generated_at":"2026-10-29T14:01:28+00:00","cve":"CVE-2023-54142","urls":{"html":"https://cve.report/CVE-2023-54142","api":"https://cve.report/api/cve/CVE-2023-54142.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-54142","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-54142"},"summary":{"title":"gtp: Fix use-after-free in __gtp_encap_destroy().","description":"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->sk_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 <TASK>\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 <48> 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 </TASK>\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---","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-24 13:16:16","updated_at":"2026-08-04 10:19:31"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/d38039697184aacff1cf576e14ef583112fdefef","name":"https://git.kernel.org/stable/c/d38039697184aacff1cf576e14ef583112fdefef","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/58fa341327fdb4bdf92597fd8796a9abc8d20ea3","name":"https://git.kernel.org/stable/c/58fa341327fdb4bdf92597fd8796a9abc8d20ea3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ebd6d2077a083329110695a996c00e8ca94bc640","name":"https://git.kernel.org/stable/c/ebd6d2077a083329110695a996c00e8ca94bc640","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dae6095bdb24f537b4798ffd9201515b97bac94e","name":"https://git.kernel.org/stable/c/dae6095bdb24f537b4798ffd9201515b97bac94e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9c9662e2512b5e4ee7b03108802c5222e0fa77a4","name":"https://git.kernel.org/stable/c/9c9662e2512b5e4ee7b03108802c5222e0fa77a4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bccc7ace12e69dee4684a3bb4b69737972e570d6","name":"https://git.kernel.org/stable/c/bccc7ace12e69dee4684a3bb4b69737972e570d6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ce3aee7114c575fab32a5e9e939d4bbb3dcca79f","name":"https://git.kernel.org/stable/c/ce3aee7114c575fab32a5e9e939d4bbb3dcca79f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/17d6b6354f0025b7c10a56da783fd0cbb3819c5d","name":"https://git.kernel.org/stable/c/17d6b6354f0025b7c10a56da783fd0cbb3819c5d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e5aa6d829831a55a693dbaeb58f8d22ba7f2b3e6","name":"https://git.kernel.org/stable/c/e5aa6d829831a55a693dbaeb58f8d22ba7f2b3e6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-54142","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54142","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01f3c64e405ab3d25887d080a103ad76f30661d2 d38039697184aacff1cf576e14ef583112fdefef git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e117a04133c673cc54292e12086a8177cd9bd4a4 e5aa6d829831a55a693dbaeb58f8d22ba7f2b3e6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e198987e7dd7d3645a53875151cd6f8fc425b706 9c9662e2512b5e4ee7b03108802c5222e0fa77a4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e198987e7dd7d3645a53875151cd6f8fc425b706 bccc7ace12e69dee4684a3bb4b69737972e570d6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e198987e7dd7d3645a53875151cd6f8fc425b706 ebd6d2077a083329110695a996c00e8ca94bc640 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e198987e7dd7d3645a53875151cd6f8fc425b706 17d6b6354f0025b7c10a56da783fd0cbb3819c5d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e198987e7dd7d3645a53875151cd6f8fc425b706 dae6095bdb24f537b4798ffd9201515b97bac94e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e198987e7dd7d3645a53875151cd6f8fc425b706 58fa341327fdb4bdf92597fd8796a9abc8d20ea3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e198987e7dd7d3645a53875151cd6f8fc425b706 ce3aee7114c575fab32a5e9e939d4bbb3dcca79f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bf75202df8e473d4ee914894542f213158066d8b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76357f65f18f180f44ccbbbf713461881d0ab219 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.14.135 4.14.322 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.19.61 4.19.291 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.1.20 5.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.2.3 5.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.14.322 4.14.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.19.291 4.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.4.251 5.4.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.188 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.121 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.39 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3.13 6.3.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4.4 6.4.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.5 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"54142","cve":"CVE-2023-54142","epss":"0.001360000","percentile":"0.034840000","score_date":"2026-08-06","updated_at":"2026-08-07 00:14:20"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.14.322","versionStartIncluding":"4.14.135","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.19.291","versionStartIncluding":"4.19.61","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.251","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.188","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.121","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.39","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.3.13","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.4.4","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.5","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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->sk_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 <TASK>\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 <48> 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 </TASK>\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---"}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:18:00.875Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d38039697184aacff1cf576e14ef583112fdefef"},{"url":"https://git.kernel.org/stable/c/e5aa6d829831a55a693dbaeb58f8d22ba7f2b3e6"},{"url":"https://git.kernel.org/stable/c/9c9662e2512b5e4ee7b03108802c5222e0fa77a4"},{"url":"https://git.kernel.org/stable/c/bccc7ace12e69dee4684a3bb4b69737972e570d6"},{"url":"https://git.kernel.org/stable/c/ebd6d2077a083329110695a996c00e8ca94bc640"},{"url":"https://git.kernel.org/stable/c/17d6b6354f0025b7c10a56da783fd0cbb3819c5d"},{"url":"https://git.kernel.org/stable/c/dae6095bdb24f537b4798ffd9201515b97bac94e"},{"url":"https://git.kernel.org/stable/c/58fa341327fdb4bdf92597fd8796a9abc8d20ea3"},{"url":"https://git.kernel.org/stable/c/ce3aee7114c575fab32a5e9e939d4bbb3dcca79f"}],"title":"gtp: Fix use-after-free in __gtp_encap_destroy().","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2023-54142","datePublished":"2025-12-24T13:06:56.204Z","dateReserved":"2025-12-24T13:02:52.523Z","dateUpdated":"2026-08-04T09:18:00.875Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-24 13:16:16","lastModifiedDate":"2026-08-04 10:19:31","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"54142","Ordinal":"1","Title":"gtp: Fix use-after-free in __gtp_encap_destroy().","CVE":"CVE-2023-54142","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"54142","Ordinal":"1","NoteData":"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->sk_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 <TASK>\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 <48> 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 </TASK>\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---","Type":"Description","Title":"gtp: Fix use-after-free in __gtp_encap_destroy()."}]}}}