CVE-2024-50298
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-50298
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50298.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-50298
- Downstream
- Related
- Published
- 2024-11-19T01:30:46Z
- Modified
- 2025-10-15T18:22:10.023381Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- net: enetc: allocate vf_state during PF probes
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: enetc: allocate vf_state during PF probes
In the previous implementation, vfstate is allocated memory only when VF is enabled. However, netdeviceops::ndosetvfmac() may be called before VF is enabled to configure the MAC address of VF. If this is the case, enetcpfsetvfmac() will access vf_state, resulting in access to a null pointer. The simplified error log is as follows.
root@ls1028ardb:~# ip link set eno0 vf 1 mac 00:0c:e7:66:77:89 [ 173.543315] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 [ 173.637254] pc : enetcpfsetvfmac+0x3c/0x80 Message from sy [ 173.641973] lr : dosetlink+0x4a8/0xec8 [ 173.732292] Call trace: [ 173.734740] enetcpfsetvfmac+0x3c/0x80 [ 173.738847] _rtnlnewlink+0x530/0x89c [ 173.742692] rtnlnewlink+0x50/0x7c [ 173.746189] rtnetlinkrcvmsg+0x128/0x390 [ 173.750298] netlinkrcvskb+0x60/0x130 [ 173.754145] rtnetlinkrcv+0x18/0x24 [ 173.757731] netlinkunicast+0x318/0x380 [ 173.761665] netlink_sendmsg+0x17c/0x3c8
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd4fd0404c1c95b17880f254ebfee3485693fa8baFixedef0edfbe9eeed1fccad7cb705648af5222664944
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd4fd0404c1c95b17880f254ebfee3485693fa8baFixed7eb923f8d4819737c07d6a8d0daef0a4d7f99e0c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd4fd0404c1c95b17880f254ebfee3485693fa8baFixede15c5506dd39885cd047f811a64240e2e8ab401b