CVE-2024-38539

In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw When running blktests nvme/rdma, the following kmemleak issue will appear. kmemleak: Kernel memory leak detector initialized (mempool available:36041) kmemleak: Automatic memory scanning thread started kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 8 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 17 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 4 new suspected memory leaks (see /sys/kernel/debug/kmemleak) unreferenced object 0xffff88855da53400 (size 192): comm "rdma", pid 10630, jiffies 4296575922 hex dump (first 32 bytes): 37 00 00 00 00 00 00 00 c0 ff ff ff 1f 00 00 00 7............... 10 34 a5 5d 85 88 ff ff 10 34 a5 5d 85 88 ff ff .4.].....4.].... backtrace (crc 47f66721): [<ffffffff911251bd>] kmalloc_trace+0x30d/0x3b0 [<ffffffffc2640ff7>] alloc_gid_entry+0x47/0x380 [ib_core] [<ffffffffc2642206>] add_modify_gid+0x166/0x930 [ib_core] [<ffffffffc2643468>] ib_cache_update.part.0+0x6d8/0x910 [ib_core] [<ffffffffc2644e1a>] ib_cache_setup_one+0x24a/0x350 [ib_core] [<ffffffffc263949e>] ib_register_device+0x9e/0x3a0 [ib_core] [<ffffffffc2a3d389>] 0xffffffffc2a3d389 [<ffffffffc2688cd8>] nldev_newlink+0x2b8/0x520 [ib_core] [<ffffffffc2645fe3>] rdma_nl_rcv_msg+0x2c3/0x520 [ib_core] [<ffffffffc264648c>] rdma_nl_rcv_skb.constprop.0.isra.0+0x23c/0x3a0 [ib_core] [<ffffffff9270e7b5>] netlink_unicast+0x445/0x710 [<ffffffff9270f1f1>] netlink_sendmsg+0x761/0xc40 [<ffffffff9249db29>] __sys_sendto+0x3a9/0x420 [<ffffffff9249dc8c>] __x64_sys_sendto+0xdc/0x1b0 [<ffffffff92db0ad3>] do_syscall_64+0x93/0x180 [<ffffffff92e00126>] entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause: rdma_put_gid_attr is not called when sgid_attr is set to ERR_PTR(-ENODEV).

CVSS v3 5.5 MEDIUM

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/3eb127dc408bf7959a4920d04d16ce10e863686a	Patch
https://git.kernel.org/stable/c/6564fc1818404254d1c9f7d75b403b4941516d26	Patch
https://git.kernel.org/stable/c/9c0731832d3b7420cbadba6a7f334363bc8dfb15	Patch
https://git.kernel.org/stable/c/b3a7fb93afd888793ef226e9665fbda98a95c48e	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::::::::

History

26 Aug 2024, 12:58

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CWE		CWE-401
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
First Time		Linux Linux linux Kernel
References	~~() https://git.kernel.org/stable/c/3eb127dc408bf7959a4920d04d16ce10e863686a -~~	() https://git.kernel.org/stable/c/3eb127dc408bf7959a4920d04d16ce10e863686a - Patch
References	~~() https://git.kernel.org/stable/c/6564fc1818404254d1c9f7d75b403b4941516d26 -~~	() https://git.kernel.org/stable/c/6564fc1818404254d1c9f7d75b403b4941516d26 - Patch
References	~~() https://git.kernel.org/stable/c/9c0731832d3b7420cbadba6a7f334363bc8dfb15 -~~	() https://git.kernel.org/stable/c/9c0731832d3b7420cbadba6a7f334363bc8dfb15 - Patch
References	~~() https://git.kernel.org/stable/c/b3a7fb93afd888793ef226e9665fbda98a95c48e -~~	() https://git.kernel.org/stable/c/b3a7fb93afd888793ef226e9665fbda98a95c48e - Patch

20 Jun 2024, 12:44

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: RDMA/cma: corrija kmemleak en rdma_core observado durante el uso de blktests nvme/rdma siw Al ejecutar blktests nvme/rdma, aparecerá el siguiente problema de kmemleak. kmemleak: detector de pérdida de memoria del kernel inicializado (mempool disponible: 36041) kmemleak: hilo de escaneo automático de memoria iniciado kmemleak: 2 nuevas pérdidas de memoria sospechosas (ver /sys/kernel/debug/kmemleak) kmemleak: 8 nuevas pérdidas de memoria sospechosas (ver /sys/ kernel/debug/kmemleak) kmemleak: 17 nuevas pérdidas de memoria sospechosas (ver /sys/kernel/debug/kmemleak) kmemleak: 4 nuevas pérdidas de memoria sospechosas (ver /sys/kernel/debug/kmemleak) objeto sin referencia 0xffff88855da53400 (tamaño 192): comm "rdma", pid 10630, sjiffies 4296575922 volcado hexadecimal (primeros 32 bytes): 37 00 00 00 00 00 00 00 c0 ff ff ff 1f 00 00 00 7................. 10 34 a5 5d 85 88 ff ff 10 34 a5 5d 85 88 ff ff .4.].....4.].... backtrace (crc 47f66721): [] kmalloc_trace+0x30d/0x3b0 [< ffffffffc2640ff7>] alloc_gid_entry+0x47/0x380 [ib_core] [] add_modify_gid+0x166/0x930 [ib_core] [] ib_cache_update.part.0+0x6d8/0x910 [ib_core] [] ib_cache_setup_one+0x24a/ 0x350 [ib_core] [] ib_register_device+0x9e/0x3a0 [ib_core] [] 0xffffffffc2a3d389 [] nldev_newlink+0x2b8/0x520 [ib_core] ffffffffc2645fe3>] rdma_nl_rcv_msg+0x2c3/0x520 [ib_core] [ ] rdma_nl_rcv_skb.constprop.0.isra.0+0x23c/0x3a0 [ib_core] [] netlink_unicast+0x445/0x710 [] 0 [] __sys_sendto+0x3a9/0x420 [] __x64_sys_sendto+0xdc/0x1b0 [] do_syscall_64+0x93/0x180 [] Entry_SYSCALL_64_after_hwframe+0x71/0x79 La causa raíz: _gid_attr no se llama cuando sgid_attr está configurado en ERR_PTR(-ENODEV).

19 Jun 2024, 14:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-06-19 14:15

Updated : 2024-08-26 12:58

NVD link : CVE-2024-38539

Mitre link : CVE-2024-38539

CVE.ORG link : CVE-2024-38539

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

5.5 /10