CVE-2024-42272

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-42272
In the Linux kernel, the following vulnerability has been resolved: sched: act_ct: take care of padding in struct zones_ht_key Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zones_ht_key got a struct net pointer. Make sure rhashtable_lookup() is not using the padding bytes which are not initialized. BUG: KMSAN: uninit-value in rht_ptr_rcu include/linux/rhashtable.h:376 [inline] BUG: KMSAN: uninit-value in __rhashtable_lookup include/linux/rhashtable.h:607 [inline] BUG: KMSAN: uninit-value in rhashtable_lookup include/linux/rhashtable.h:646 [inline] BUG: KMSAN: uninit-value in rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline] BUG: KMSAN: uninit-value in tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329 rht_ptr_rcu include/linux/rhashtable.h:376 [inline] __rhashtable_lookup include/linux/rhashtable.h:607 [inline] rhashtable_lookup include/linux/rhashtable.h:646 [inline] rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline] tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408 tcf_action_init_1+0x6cc/0xb30 net/sched/act_api.c:1425 tcf_action_init+0x458/0xf00 net/sched/act_api.c:1488 tcf_action_add net/sched/act_api.c:2061 [inline] tc_ctl_action+0x4be/0x19d0 net/sched/act_api.c:2118 rtnetlink_rcv_msg+0x12fc/0x1410 net/core/rtnetlink.c:6647 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6665 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 ____sys_sendmsg+0x877/0xb60 net/socket.c:2597 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2651 __sys_sendmsg net/socket.c:2680 [inline] __do_sys_sendmsg net/socket.c:2689 [inline] __se_sys_sendmsg net/socket.c:2687 [inline] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2687 x64_sys_call+0x2dd6/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable key created at: tcf_ct_flow_table_get+0x4a/0x2260 net/sched/act_ct.c:324 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2191a54f63225b548fd8346be3611c3219a24738 Patch
https://git.kernel.org/stable/c/3a5b68869dbe14f1157c6a24ac71923db060eeab Patch
https://git.kernel.org/stable/c/3ddefcb8f75e312535e2e7d5fef9932019ba60f2 Patch
https://git.kernel.org/stable/c/7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee Patch
https://git.kernel.org/stable/c/d06daf0ad645d9225a3ff6958dd82e1f3988fa64 Patch
https://git.kernel.org/stable/c/d7cc186d0973afce0e1237c37f7512c01981fb79 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
History

30 Sep 2024, 13:40

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-908
CPE cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/2191a54f63225b548fd8346be3611c3219a24738 - () https://git.kernel.org/stable/c/2191a54f63225b548fd8346be3611c3219a24738 - Patch
References () https://git.kernel.org/stable/c/3a5b68869dbe14f1157c6a24ac71923db060eeab - () https://git.kernel.org/stable/c/3a5b68869dbe14f1157c6a24ac71923db060eeab - Patch
References () https://git.kernel.org/stable/c/3ddefcb8f75e312535e2e7d5fef9932019ba60f2 - () https://git.kernel.org/stable/c/3ddefcb8f75e312535e2e7d5fef9932019ba60f2 - Patch
References () https://git.kernel.org/stable/c/7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee - () https://git.kernel.org/stable/c/7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee - Patch
References () https://git.kernel.org/stable/c/d06daf0ad645d9225a3ff6958dd82e1f3988fa64 - () https://git.kernel.org/stable/c/d06daf0ad645d9225a3ff6958dd82e1f3988fa64 - Patch
References () https://git.kernel.org/stable/c/d7cc186d0973afce0e1237c37f7512c01981fb79 - () https://git.kernel.org/stable/c/d7cc186d0973afce0e1237c37f7512c01981fb79 - Patch

19 Aug 2024, 12:59

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: sched: act_ct: cuida el relleno en struct zonas_ht_key El commit culpada aumentó el tamaño de la clave de búsqueda de 2 bytes a 16 bytes, porque zonas_ht_key obtuvo un puntero de red de estructura. Asegúrese de que rhashtable_lookup() no esté utilizando los bytes de relleno que no están inicializados. ERROR: KMSAN: valor uninit en rht_ptr_rcu include/linux/rhashtable.h:376 [en línea] ERROR: KMSAN: valor uninit en __rhashtable_lookup include/linux/rhashtable.h:607 [en línea] ERROR: KMSAN: valor uninit en rhashtable_lookup include/linux/rhashtable.h:646 [en línea] ERROR: KMSAN: valor uninit en rhashtable_lookup_fast include/linux/rhashtable.h:672 [en línea] ERROR: KMSAN: valor uninit en tcf_ct_flow_table_get+0x611/0x2260 net/sched /act_ct.c:329 rht_ptr_rcu include/linux/rhashtable.h:376 [en línea] __rhashtable_lookup include/linux/rhashtable.h:607 [en línea] rhashtable_lookup include/linux/rhashtable.h:646 [en línea] rhashtable_lookup_fast include/linux/ rhashtable.h:672 [en línea] tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408 tcf_action_init_1+0x6cc/0xb30 net/sched/act_api.c:1425 tcf_action_init+0x458/0xf00 net/sched/act_api.c:1488 tcf_action_add net/sched/act_api.c:2061 [en línea] tc_ctl_action+0x4be/0x19d0 net/sched/act_api.c:2118 rtnetlink_rcv_msg+0x12fc/0x1410 net /núcleo/ rtnetlink.c:6647 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6665 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [en línea] netlink_unicast+0xf52/ 0x1260 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [en línea] __sock_sendmsg+0x30f/0x380 net/socket.c:745 ____sys_s mensaje final+0x877 /0xb60 net/socket.c:2597 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2651 __sys_sendmsg net/socket.c:2680 [en línea] __do_sys_sendmsg net/socket.c:2689 [en línea] __se_sys_sendmsg net/socket. c: 2687 [en línea] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2687 x64_sys_call+0x2dd6/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:52 [en línea ] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x77/0x7f Clave de variable local creada en: tcf_ct_flow_table_get+0x4a/0x2260 net/sched/act_ct.c:324 tcf_ct_init+0xa67/0x2890 net /programado /act_ct.c:1408

19 Aug 2024, 05:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/3ddefcb8f75e312535e2e7d5fef9932019ba60f2 -
  • () https://git.kernel.org/stable/c/7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee -

17 Aug 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-17 09:15

Updated : 2024-09-30 13:40

NVD link : CVE-2024-42272

Mitre link : CVE-2024-42272

CVE.ORG link : CVE-2024-42272

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-908

Use of Uninitialized Resource