CVE-2022-48651 (GCVE-0-2022-48651)

Vulnerability from cvelistv5 – Published: 2024-04-28 13:00 – Updated: 2026-05-11 18:44
VLAI
Title
ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header
Summary
In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header If an AF_PACKET socket is used to send packets through ipvlan and the default xmit function of the AF_PACKET socket is changed from dev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and remains as the initial value of 65535, this may trigger slab-out-of-bounds bugs as following: ================================================================= UG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] PU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6 ardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 all Trace: print_address_description.constprop.0+0x1d/0x160 print_report.cold+0x4f/0x112 kasan_report+0xa3/0x130 ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] ipvlan_start_xmit+0x29/0xa0 [ipvlan] __dev_direct_xmit+0x2e2/0x380 packet_direct_xmit+0x22/0x60 packet_snd+0x7c9/0xc40 sock_sendmsg+0x9a/0xa0 __sys_sendto+0x18a/0x230 __x64_sys_sendto+0x74/0x90 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The root cause is: 1. packet_snd() only reset skb->mac_header when sock->type is SOCK_RAW and skb->protocol is not specified as in packet_parse_headers() 2. packet_direct_xmit() doesn't reset skb->mac_header as dev_queue_xmit() In this case, skb->mac_header is 65535 when ipvlan_xmit_mode_l2() is called. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which use "skb->head + skb->mac_header", out-of-bound access occurs. This patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2() and reset mac header in multicast to solve this out-of-bound bug.
Severity
7.7 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < e2b46cd5796f083e452fbc624f65b80328b0c1a4 (git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 25efdbe5fe542c3063d1948cc4e98abcb57621ca (git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < bffcdade259c05ab3436b5fab711612093c275ef (git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 346e94aa4a99378592c46d6a34c72703a32bd5be (git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < ab4a733874ead120691e8038272d22f8444d3638 (git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 8d06006c7eb75587d986da46c48ba9274f94e8e7 (git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < b583e6b25bf9321c91154f6c78d2173ef12c4241 (git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 81225b2ea161af48e093f58e8dfee6d705b16af4 (git)
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Linux Linux Affected: 3.19
Unaffected: 0 , < 3.19 (semver)
Unaffected: 4.9.330 , ≤ 4.9.* (semver)
Unaffected: 4.14.295 , ≤ 4.14.* (semver)
Unaffected: 4.19.260 , ≤ 4.19.* (semver)
Unaffected: 5.4.215 , ≤ 5.4.* (semver)
Unaffected: 5.10.146 , ≤ 5.10.* (semver)
Unaffected: 5.15.71 , ≤ 5.15.* (semver)
Unaffected: 5.19.12 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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linux linux_kernel Affected: 3.19
    cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*
 Create a notification for this product.
linux linux_kernel Affected: 2ad7bf363841
    cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipvlan: Fix out-of-bound bugs caused by unset skb-\u003emac_header\\n\\nIf an AF_PACKET socket is used to send packets through ipvlan and the\\ndefault xmit function of the AF_PACKET socket is changed from\\ndev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option\\nname of PACKET_QDISC_BYPASS, the skb-\u003emac_header may not be reset and\\nremains as the initial value of 65535, this may trigger slab-out-of-bounds\\nbugs as following:\\n\\n=================================================================\\nUG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]\\nPU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6\\nardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33\\nall Trace:\\nprint_address_description.constprop.0+0x1d/0x160\\nprint_report.cold+0x4f/0x112\\nkasan_report+0xa3/0x130\\nipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]\\nipvlan_start_xmit+0x29/0xa0 [ipvlan]\\n__dev_direct_xmit+0x2e2/0x380\\npacket_direct_xmit+0x22/0x60\\npacket_snd+0x7c9/0xc40\\nsock_sendmsg+0x9a/0xa0\\n__sys_sendto+0x18a/0x230\\n__x64_sys_sendto+0x74/0x90\\ndo_syscall_64+0x3b/0x90\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nThe root cause is:\\n  1. packet_snd() only reset skb-\u003emac_header when sock-\u003etype is SOCK_RAW\\n     and skb-\u003eprotocol is not specified as in packet_parse_headers()\\n\\n  2. packet_direct_xmit() doesn\u0027t reset skb-\u003emac_header as dev_queue_xmit()\\n\\nIn this case, skb-\u003emac_header is 65535 when ipvlan_xmit_mode_l2() is\\ncalled. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which\\nuse \\\"skb-\u003ehead + skb-\u003emac_header\\\", out-of-bound access occurs.\\n\\nThis patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2()\\nand reset mac header in multicast to solve this out-of-bound bug.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipvlan: corrige errores fuera de los l\\u00edmites causados por skb-\u0026gt;mac_header no configurado si se usa un socket AF_PACKET para enviar paquetes a trav\\u00e9s de ipvlan y se cambia la funci\\u00f3n xmit predeterminada del socket AF_PACKET desde dev_queue_xmit() a paquete_direct_xmit() a trav\\u00e9s de setsockopt() con el nombre de opci\\u00f3n PACKET_QDISC_BYPASS, es posible que skb-\u0026gt;mac_header no se restablezca y permanezca en el valor inicial de 65535, esto puede desencadenar errores de losa fuera de los l\\u00edmites como se muestra a continuaci\\u00f3n : =================================================== ================ UG: KASAN: losa fuera de los l\\u00edmites en ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] PU: 2 PID: 1768 Comm: raw_send Kdump: cargado No contaminado 6.0.0-rc4+ #6 nombre de hardware: PC est\\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 todo Seguimiento: print_address_description.constprop.0+0x1d/0x160 print_report.cold+0x4f/0x112 kasan_report+ 0xa3/0x130 ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] ipvlan_start_xmit+0x29/0xa0 [ipvlan] __dev_direct_xmit+0x2e2/0x380 paquete_direct_xmit+0x22/0x60 paquete_snd+0x7c9/0xc40 0x9a/0xa0 __sys_sendto+0x18a/0x230 __x64_sys_sendto+0x74/0x90 do_syscall_64 +0x3b/0x90 Entry_SYSCALL_64_after_hwframe+0x63/0xcd La causa principal es: 1. paquete_snd() solo restablece skb-\u0026gt;mac_header cuando sock-\u0026gt;tipo es SOCK_RAW y skb-\u0026gt;protocolo no se especifica como en paquete_parse_headers() 2. paquete_direct_xmit() no restablece skb-\u0026gt;mac_header como dev_queue_xmit() En este caso, skb-\u0026gt;mac_header es 65535 cuando se llama a ipvlan_xmit_mode_l2(). Entonces, cuando ipvlan_xmit_mode_l2() obtiene el encabezado mac con eth_hdr() que usa \\\"skb-\u0026gt;head + skb-\u0026gt;mac_header\\\", se produce un acceso fuera de los l\\u00edmites. Este parche reemplaza eth_hdr() con skb_eth_hdr() en ipvlan_xmit_mode_l2() y restablece el encabezado de mac en multidifusi\\u00f3n para resolver este error fuera de los l\\u00edmites.\"}]",
      "id": "CVE-2022-48651",
      "lastModified": "2024-11-21T07:33:41.797",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\", \"baseScore\": 7.7, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.5, \"impactScore\": 5.2}]}",
      "published": "2024-04-28T13:15:07.423",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/25efdbe5fe542c3063d1948cc4e98abcb57621ca\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/346e94aa4a99378592c46d6a34c72703a32bd5be\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/81225b2ea161af48e093f58e8dfee6d705b16af4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/8d06006c7eb75587d986da46c48ba9274f94e8e7\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/ab4a733874ead120691e8038272d22f8444d3638\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/b583e6b25bf9321c91154f6c78d2173ef12c4241\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/bffcdade259c05ab3436b5fab711612093c275ef\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/e2b46cd5796f083e452fbc624f65b80328b0c1a4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/25efdbe5fe542c3063d1948cc4e98abcb57621ca\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/346e94aa4a99378592c46d6a34c72703a32bd5be\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/81225b2ea161af48e093f58e8dfee6d705b16af4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/8d06006c7eb75587d986da46c48ba9274f94e8e7\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/ab4a733874ead120691e8038272d22f8444d3638\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/b583e6b25bf9321c91154f6c78d2173ef12c4241\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/bffcdade259c05ab3436b5fab711612093c275ef\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/e2b46cd5796f083e452fbc624f65b80328b0c1a4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": "[{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-125\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48651\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-28T13:15:07.423\",\"lastModified\":\"2026-06-17T05:15:49.500\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipvlan: Fix out-of-bound bugs caused by unset skb-\u003emac_header\\n\\nIf an AF_PACKET socket is used to send packets through ipvlan and the\\ndefault xmit function of the AF_PACKET socket is changed from\\ndev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option\\nname of PACKET_QDISC_BYPASS, the skb-\u003emac_header may not be reset and\\nremains as the initial value of 65535, this may trigger slab-out-of-bounds\\nbugs as following:\\n\\n=================================================================\\nUG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]\\nPU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6\\nardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33\\nall Trace:\\nprint_address_description.constprop.0+0x1d/0x160\\nprint_report.cold+0x4f/0x112\\nkasan_report+0xa3/0x130\\nipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]\\nipvlan_start_xmit+0x29/0xa0 [ipvlan]\\n__dev_direct_xmit+0x2e2/0x380\\npacket_direct_xmit+0x22/0x60\\npacket_snd+0x7c9/0xc40\\nsock_sendmsg+0x9a/0xa0\\n__sys_sendto+0x18a/0x230\\n__x64_sys_sendto+0x74/0x90\\ndo_syscall_64+0x3b/0x90\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nThe root cause is:\\n  1. packet_snd() only reset skb-\u003emac_header when sock-\u003etype is SOCK_RAW\\n     and skb-\u003eprotocol is not specified as in packet_parse_headers()\\n\\n  2. packet_direct_xmit() doesn\u0027t reset skb-\u003emac_header as dev_queue_xmit()\\n\\nIn this case, skb-\u003emac_header is 65535 when ipvlan_xmit_mode_l2() is\\ncalled. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which\\nuse \\\"skb-\u003ehead + skb-\u003emac_header\\\", out-of-bound access occurs.\\n\\nThis patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2()\\nand reset mac header in multicast to solve this out-of-bound bug.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipvlan: corrige errores fuera de los l\u00edmites causados por skb-\u0026gt;mac_header no configurado si se usa un socket AF_PACKET para enviar paquetes a trav\u00e9s de ipvlan y se cambia la funci\u00f3n xmit predeterminada del socket AF_PACKET desde dev_queue_xmit() a paquete_direct_xmit() a trav\u00e9s de setsockopt() con el nombre de opci\u00f3n PACKET_QDISC_BYPASS, es posible que skb-\u0026gt;mac_header no se restablezca y permanezca en el valor inicial de 65535, esto puede desencadenar errores de losa fuera de los l\u00edmites como se muestra a continuaci\u00f3n : =================================================== ================ UG: KASAN: losa fuera de los l\u00edmites en ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] PU: 2 PID: 1768 Comm: raw_send Kdump: cargado No contaminado 6.0.0-rc4+ #6 nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 todo Seguimiento: print_address_description.constprop.0+0x1d/0x160 print_report.cold+0x4f/0x112 kasan_report+ 0xa3/0x130 ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] ipvlan_start_xmit+0x29/0xa0 [ipvlan] __dev_direct_xmit+0x2e2/0x380 paquete_direct_xmit+0x22/0x60 paquete_snd+0x7c9/0xc40 0x9a/0xa0 __sys_sendto+0x18a/0x230 __x64_sys_sendto+0x74/0x90 do_syscall_64 +0x3b/0x90 Entry_SYSCALL_64_after_hwframe+0x63/0xcd La causa principal es: 1. paquete_snd() solo restablece skb-\u0026gt;mac_header cuando sock-\u0026gt;tipo es SOCK_RAW y skb-\u0026gt;protocolo no se especifica como en paquete_parse_headers() 2. paquete_direct_xmit() no restablece skb-\u0026gt;mac_header como dev_queue_xmit() En este caso, skb-\u0026gt;mac_header es 65535 cuando se llama a ipvlan_xmit_mode_l2(). Entonces, cuando ipvlan_xmit_mode_l2() obtiene el encabezado mac con eth_hdr() que usa \\\"skb-\u0026gt;head + skb-\u0026gt;mac_header\\\", se produce un acceso fuera de los l\u00edmites. Este parche reemplaza eth_hdr() con skb_eth_hdr() en ipvlan_xmit_mode_l2() y restablece el encabezado de mac en multidifusi\u00f3n para resolver este error fuera de los l\u00edmites.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ipvlan/ipvlan_core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"e2b46cd5796f083e452fbc624f65b80328b0c1a4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"25efdbe5fe542c3063d1948cc4e98abcb57621ca\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"bffcdade259c05ab3436b5fab711612093c275ef\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"346e94aa4a99378592c46d6a34c72703a32bd5be\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"ab4a733874ead120691e8038272d22f8444d3638\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"8d06006c7eb75587d986da46c48ba9274f94e8e7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"b583e6b25bf9321c91154f6c78d2173ef12c4241\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ad7bf3638411cb547f2823df08166c13ab04269\",\"lessThan\":\"81225b2ea161af48e093f58e8dfee6d705b16af4\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ipvlan/ipvlan_core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.19\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.19\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.9.330\",\"lessThanOrEqual\":\"4.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.295\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.260\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.215\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.146\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.71\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19.12\",\"lessThanOrEqual\":\"5.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"affectedData\":[{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"3.19\",\"status\":\"affected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"2ad7bf363841\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\",\"baseScore\":7.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":5.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-04-30T15:57:11.904317Z\",\"id\":\"CVE-2022-48651\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:40:18+00:00",
      "cve": "CVE-2022-48651",
      "id": "CVE-2022-48651",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "48",
      "product_status:known_not_affected": "150",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ipvlan: Fix out-of-bound bugs caused by unset skb-\u0026gt;mac_header",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48651.json",
      "version": "3"
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    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-05-13T15:17:29Z",
      "cve": "CVE-2022-48651",
      "id": "CVE-2022-48651",
      "initial_release_date": "2024-04-30T02:26:31Z",
      "product_status:known_affected": "308",
      "product_status:known_not_affected": "76",
      "product_status:recommended": "794",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-48651",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-48651.json",
      "version": "89"
    },
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from\\ndev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option\\nname of PACKET_QDISC_BYPASS, the skb-\u003emac_header may not be reset and\\nremains as the initial value of 65535, this may trigger slab-out-of-bounds\\nbugs as following:\\n\\n=================================================================\\nUG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]\\nPU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6\\nardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33\\nall Trace:\\nprint_address_description.constprop.0+0x1d/0x160\\nprint_report.cold+0x4f/0x112\\nkasan_report+0xa3/0x130\\nipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]\\nipvlan_start_xmit+0x29/0xa0 [ipvlan]\\n__dev_direct_xmit+0x2e2/0x380\\npacket_direct_xmit+0x22/0x60\\npacket_snd+0x7c9/0xc40\\nsock_sendmsg+0x9a/0xa0\\n__sys_sendto+0x18a/0x230\\n__x64_sys_sendto+0x74/0x90\\ndo_syscall_64+0x3b/0x90\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nThe root cause is:\\n  1. packet_snd() only reset skb-\u003emac_header when sock-\u003etype is SOCK_RAW\\n     and skb-\u003eprotocol is not specified as in packet_parse_headers()\\n\\n  2. packet_direct_xmit() doesn\u0027t reset skb-\u003emac_header as dev_queue_xmit()\\n\\nIn this case, skb-\u003emac_header is 65535 when ipvlan_xmit_mode_l2() is\\ncalled. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which\\nuse \\\"skb-\u003ehead + skb-\u003emac_header\\\", out-of-bound access occurs.\\n\\nThis patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2()\\nand reset mac header in multicast to solve this out-of-bound bug.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.330\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.295\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.260\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.215\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.146\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.71\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.12\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0\", \"versionStartIncluding\": \"3.19\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:44:30.072Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48651\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:44:30.072Z\", \"dateReserved\": \"2024-02-25T13:44:28.317Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-28T13:00:42.929Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.