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CVE-2024-35894— mptcp: prevent BPF accessing lowat from a subflow socket.

EPSS 0.05% · P14
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I. Basic Information for CVE-2024-35894

Vulnerability Information
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Vulnerability Title
mptcp: prevent BPF accessing lowat from a subflow socket.
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent BPF accessing lowat from a subflow socket. Alexei reported the following splat: WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflow_data_ready+0x147/0x1c0 Modules linked in: dummy bpf_testmod(O) [last unloaded: bpf_test_no_cfi(O)] CPU: 32 PID: 3276 Comm: test_progs Tainted: GO 6.8.0-12873-g2c43c33bfd23 Call Trace: <TASK> mptcp_set_rcvlowat+0x79/0x1d0 sk_setsockopt+0x6c0/0x1540 __bpf_setsockopt+0x6f/0x90 bpf_sock_ops_setsockopt+0x3c/0x90 bpf_prog_509ce5db2c7f9981_bpf_test_sockopt_int+0xb4/0x11b bpf_prog_dce07e362d941d2b_bpf_test_socket_sockopt+0x12b/0x132 bpf_prog_348c9b5faaf10092_skops_sockopt+0x954/0xe86 __cgroup_bpf_run_filter_sock_ops+0xbc/0x250 tcp_connect+0x879/0x1160 tcp_v6_connect+0x50c/0x870 mptcp_connect+0x129/0x280 __inet_stream_connect+0xce/0x370 inet_stream_connect+0x36/0x50 bpf_trampoline_6442491565+0x49/0xef inet_stream_connect+0x5/0x50 __sys_connect+0x63/0x90 __x64_sys_connect+0x14/0x20 The root cause of the issue is that bpf allows accessing mptcp-level proto_ops from a tcp subflow scope. Fix the issue detecting the problematic call and preventing any action.
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bpf 允许从 tcp 子流范围访问 mptcp 级别的 proto_ops。
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 124a4885b55f3039c697feb53edc5ad88bf21161 ~ ee3c845787b621cfe82c2e52c513024a9d7a78f5 -
LinuxLinux 6.7 -

II. Public POCs for CVE-2024-35894

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III. Intelligence Information for CVE-2024-35894

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Same Patch Batch · Linux · 2024-05-19 · 82 CVEs total

CVE-2024-35915nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
CVE-2024-35926crypto: iaa - Fix async_disable descriptor leak
CVE-2024-35912wifi: iwlwifi: mvm: rfi: fix potential response leaks
CVE-2024-35913wifi: iwlwifi: mvm: pick the version of SESSION_PROTECTION_NOTIF
CVE-2024-35911ice: fix memory corruption bug with suspend and rebuild
CVE-2024-35908tls: get psock ref after taking rxlock to avoid leak
CVE-2024-35907mlxbf_gige: call request_irq() after NAPI initialized
CVE-2024-35905bpf: Protect against int overflow for stack access size
CVE-2024-35904selinux: avoid dereference of garbage after mount failure
CVE-2024-35909net: wwan: t7xx: Split 64bit accesses to fix alignment issues
CVE-2024-35914nfsd: Fix error cleanup path in nfsd_rename()
CVE-2024-35916dma-buf: Fix NULL pointer dereference in sanitycheck()
CVE-2024-35917s390/bpf: Fix bpf_plt pointer arithmetic
CVE-2023-52699sysv: don't call sb_bread() with pointers_lock held
CVE-2024-35919media: mediatek: vcodec: adding lock to protect encoder context list
CVE-2024-35920media: mediatek: vcodec: adding lock to protect decoder context list
CVE-2024-35921media: mediatek: vcodec: Fix oops when HEVC init fails
CVE-2024-35922fbmon: prevent division by zero in fb_videomode_from_videomode()
CVE-2024-35924usb: typec: ucsi: Limit read size on v1.2
CVE-2024-35925block: prevent division by zero in blk_rq_stat_sum()

Showing top 20 of 82 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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