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CVE-2024-50262— bpf: Fix out-of-bounds write in trie_get_next_key()

EPSS 0.03% · P8
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I. Basic Information for CVE-2024-50262

Vulnerability Information
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Vulnerability Title
bpf: Fix out-of-bounds write in trie_get_next_key()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.
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trie_get_next_key函数中存在越界写入问题。
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 b471f2f1de8b816f1e799b80aa92588f3566e4bd ~ e8494ac079814a53fbc2258d2743e720907488ed -
LinuxLinux 4.16 -

II. Public POCs for CVE-2024-50262

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III. Intelligence Information for CVE-2024-50262

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Same Patch Batch · Linux · 2024-11-09 · 49 CVEs total

CVE-2024-50248ntfs3: Add bounds checking to mi_enum_attr()
CVE-2024-50251netfilter: nft_payload: sanitize offset and length before calling skb_checksum()
CVE-2024-50253bpf: Check the validity of nr_words in bpf_iter_bits_new()
CVE-2024-50257netfilter: Fix use-after-free in get_info()
CVE-2024-50258net: fix crash when config small gso_max_size/gso_ipv4_max_size
CVE-2024-50259netdevsim: Add trailing zero to terminate the string in nsim_nexthop_bucket_activity_write
CVE-2024-50260sock_map: fix a NULL pointer dereference in sock_map_link_update_prog()
CVE-2024-50261macsec: Fix use-after-free while sending the offloading packet
CVE-2024-50256netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
CVE-2024-50249ACPI: CPPC: Make rmw_lock a raw_spin_lock
CVE-2024-50250fsdax: dax_unshare_iter needs to copy entire blocks
CVE-2024-50247fs/ntfs3: Check if more than chunk-size bytes are written
CVE-2024-50246fs/ntfs3: Add rough attr alloc_size check
CVE-2024-50244fs/ntfs3: Additional check in ni_clear()
CVE-2024-50245fs/ntfs3: Fix possible deadlock in mi_read
CVE-2024-50243fs/ntfs3: Fix general protection fault in run_is_mapped_full
CVE-2024-50242fs/ntfs3: Additional check in ntfs_file_release
CVE-2024-50241NFSD: Initialize struct nfsd4_copy earlier
CVE-2024-50240phy: qcom: qmp-usb: fix NULL-deref on runtime suspend
CVE-2024-50239phy: qcom: qmp-usb-legacy: fix NULL-deref on runtime suspend

Showing top 20 of 49 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50262

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