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CVE-2021-47464— audit: fix possible null-pointer dereference in audit_filter_rules

AI Predicted 4.7 Difficulty: Moderate EPSS 0.23% · P13

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinuxbf361231c295d92a28ca283ea713f56e93e55796< d6f451f1f60c58d73038c7c3177066f8f084e2a2affected
bf361231c295d92a28ca283ea713f56e93e55796< 16802fa4c33eb1a8efb23f1e93365190e4047d05affected
bf361231c295d92a28ca283ea713f56e93e55796< 4e9e46a700201b4c85081fd478c99c692a9aaa0daffected
bf361231c295d92a28ca283ea713f56e93e55796< 6e3ee990c90494561921c756481d0e2125d8b895affected
5.3affected
< 5.3unaffected
5.4.156≤ 5.4.*unaffected
5.10.76≤ 5.10.*unaffected
… +2 more rows
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I. Basic Information for CVE-2021-47464

Vulnerability Information
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Vulnerability Title
audit: fix possible null-pointer dereference in audit_filter_rules
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: audit: fix possible null-pointer dereference in audit_filter_rules Fix possible null-pointer dereference in audit_filter_rules. audit_filter_rules() error: we previously assumed 'ctx' could be null
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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，该漏洞源于空指针取消引用。
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 bf361231c295d92a28ca283ea713f56e93e55796 ~ d6f451f1f60c58d73038c7c3177066f8f084e2a2 -
LinuxLinux 5.3 -

II. Public POCs for CVE-2021-47464

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III. Intelligence Information for CVE-2021-47464

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Other References for CVE-2021-47464 (4)

Same Patch Batch · Linux · 2024-05-22 · 63 CVEs total

CVE-2021-474969.8 CRITICALnet/tls: Fix flipped sign in tls_err_abort() calls
CVE-2021-474789.1 CRITICALisofs: Fix out of bound access for corrupted isofs image
CVE-2021-474508.8 HIGHKVM: arm64: Fix host stage-2 PGD refcount
CVE-2021-474338.1 HIGHbtrfs: fix abort logic in btrfs_replace_file_extents
CVE-2021-474467.8 HIGHdrm/msm/a4xx: fix error handling in a4xx_gpu_init()
CVE-2021-474937.8 HIGHocfs2: fix race between searching chunks and release journal_head from buffer_head
CVE-2021-474927.8 HIGHmm, thp: bail out early in collapse_file for writeback page
CVE-2021-474947.8 HIGHcfg80211: fix management registrations locking
CVE-2021-474517.8 HIGHnetfilter: xt_IDLETIMER: fix panic that occurs when timer_type has garbage value
CVE-2021-474477.8 HIGHdrm/msm/a3xx: fix error handling in a3xx_gpu_init()
CVE-2021-474857.8 HIGHIB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
CVE-2021-474837.8 HIGHregmap: Fix possible double-free in regcache_rbtree_exit()
CVE-2021-474597.8 HIGHcan: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv
CVE-2021-474617.8 HIGHuserfaultfd: fix a race between writeprotect and exit_mmap()
CVE-2021-474487.5 HIGHmptcp: fix possible stall on recvmsg()
CVE-2021-474387.1 HIGHnet/mlx5e: Fix memory leak in mlx5_core_destroy_cq() error path
CVE-2021-474657.1 HIGHKVM: PPC: Book3S HV: Fix stack handling in idle_kvm_start_guest()
CVE-2021-474587.1 HIGHocfs2: mount fails with buffer overflow in strlen
CVE-2021-47497nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells
CVE-2021-47498dm rq: don't queue request to blk-mq during DM suspend

Showing top 20 of 63 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47464

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