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CVE-2024-50094— sfc: Don't invoke xdp_do_flush() from netpoll.

EPSS 0.03% · P8
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I. Basic Information for CVE-2024-50094

Vulnerability Information
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Vulnerability Title
sfc: Don't invoke xdp_do_flush() from netpoll.
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: sfc: Don't invoke xdp_do_flush() from netpoll. Yury reported a crash in the sfc driver originated from netpoll_send_udp(). The netconsole sends a message and then netpoll invokes the driver's NAPI function with a budget of zero. It is dedicated to allow driver to free TX resources, that it may have used while sending the packet. In the netpoll case the driver invokes xdp_do_flush() unconditionally, leading to crash because bpf_net_context was never assigned. Invoke xdp_do_flush() only if budget is not zero.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于sfc模块中，在netpoll情况下无条件调用xdp_do_flush，可能导致崩溃，因为bpf_net_context未被分配。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 401cb7dae8130fd34eb84648e02ab4c506df7d5e ~ 65d4fc76d75c136744e67754d20feda609e7b793 -
LinuxLinux 6.11 -

II. Public POCs for CVE-2024-50094

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III. Intelligence Information for CVE-2024-50094

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Same Patch Batch · Linux · 2024-11-05 · 50 CVEs total

CVE-2024-50123bpf: Add the missing BPF_LINK_TYPE invocation for sockmap
CVE-2024-50129net: pse-pd: Fix out of bound for loop
CVE-2024-50134drm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA
CVE-2024-50136net/mlx5: Unregister notifier on eswitch init failure
CVE-2024-50135nvme-pci: fix race condition between reset and nvme_dev_disable()
CVE-2024-50137reset: starfive: jh71x0: Fix accessing the empty member on JH7110 SoC
CVE-2024-50138bpf: Use raw_spinlock_t in ringbuf
CVE-2024-50132tracing/probes: Fix MAX_TRACE_ARGS limit handling
CVE-2024-50127net: sched: fix use-after-free in taprio_change()
CVE-2024-50125Bluetooth: SCO: Fix UAF on sco_sock_timeout
CVE-2024-50126net: sched: use RCU read-side critical section in taprio_dump()
CVE-2024-50124Bluetooth: ISO: Fix UAF on iso_sock_timeout
CVE-2024-50121nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net
CVE-2024-50122PCI: Hold rescan lock while adding devices during host probe
CVE-2024-50120smb: client: Handle kstrdup failures for passwords
CVE-2024-50119cifs: fix warning when destroy 'cifs_io_request_pool'
CVE-2024-50118btrfs: reject ro->rw reconfiguration if there are hard ro requirements
CVE-2024-50117drm/amd: Guard against bad data for ATIF ACPI method
CVE-2024-50116nilfs2: fix kernel bug due to missing clearing of buffer delay flag
CVE-2024-50115KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory

Showing top 20 of 50 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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