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ubuntucveUbuntu.comUB:CVE-2021-47265
HistoryMay 21, 2024 - 12:00 a.m.

CVE-2021-47265

2024-05-2100:00:00
ubuntu.com
ubuntu.com
2
linux kernel
rdma
port validation

6.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

In the Linux kernel, the following vulnerability has been resolved: RDMA:
Verify port when creating flow rule Validate port value provided by the
user and with that remove no longer needed validation by the driver. The
missing check in the mlx5_ib driver could cause to the below oops. Call
trace: _create_flow_rule+0x2d4/0xf28 [mlx5_ib]
mlx5_ib_create_flow+0x2d0/0x5b0 [mlx5_ib]
ib_uverbs_ex_create_flow+0x4cc/0x624 [ib_uverbs]
ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0xd4/0x150 [ib_uverbs]
ib_uverbs_cmd_verbs.isra.7+0xb28/0xc50 [ib_uverbs]
ib_uverbs_ioctl+0x158/0x1d0 [ib_uverbs] do_vfs_ioctl+0xd0/0xaf0
ksys_ioctl+0x84/0xb4 __arm64_sys_ioctl+0x28/0xc4
el0_svc_common.constprop.3+0xa4/0x254 el0_svc_handler+0x84/0xa0
el0_svc+0x10/0x26c Code: b9401260 f9615681 51000400 8b001c20 (f9403c1a)

6.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%