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CVE-2024-56675— bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors

EPSS 0.02% · P7
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I. Basic Information for CVE-2024-56675

Vulnerability Information
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Vulnerability Title
bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors Uprobes always use bpf_prog_run_array_uprobe() under tasks-trace-RCU protection. But it is possible to attach a non-sleepable BPF program to a uprobe, and non-sleepable BPF programs are freed via normal RCU (see __bpf_prog_put_noref()). This leads to UAF of the bpf_prog because a normal RCU grace period does not imply a tasks-trace-RCU grace period. Fix it by explicitly waiting for a tasks-trace-RCU grace period after removing the attachment of a bpf_prog to a perf_event.
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子系统中bpf_prog和attachment RCU风味不匹配导致的释放后重用问题。
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 8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 ~ 9245459a992d22fe0e92e988f49db1fec82c184a -
LinuxLinux 6.0 -

II. Public POCs for CVE-2024-56675

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III. Intelligence Information for CVE-2024-56675

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Same Patch Batch · Linux · 2024-12-27 · 221 CVEs total

CVE-2024-56606af_packet: avoid erroring out after sock_init_data() in packet_create()
CVE-2024-56592bpf: Call free_htab_elem() after htab_unlock_bucket()
CVE-2024-56594drm/amdgpu: set the right AMDGPU sg segment limitation
CVE-2024-56595jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree
CVE-2024-56596jfs: fix array-index-out-of-bounds in jfs_readdir
CVE-2024-56597jfs: fix shift-out-of-bounds in dbSplit
CVE-2024-56598jfs: array-index-out-of-bounds fix in dtReadFirst
CVE-2024-56599wifi: ath10k: avoid NULL pointer error during sdio remove
CVE-2024-56601net: inet: do not leave a dangling sk pointer in inet_create()
CVE-2024-56600net: inet6: do not leave a dangling sk pointer in inet6_create()
CVE-2024-56602net: ieee802154: do not leave a dangling sk pointer in ieee802154_create()
CVE-2024-56603net: af_can: do not leave a dangling sk pointer in can_create()
CVE-2024-56604Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()
CVE-2024-56605Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()
CVE-2024-56617cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU
CVE-2024-56614xsk: fix OOB map writes when deleting elements
CVE-2024-56615bpf: fix OOB devmap writes when deleting elements
CVE-2024-56616drm/dp_mst: Fix MST sideband message body length check
CVE-2024-56613sched/numa: fix memory leak due to the overwritten vma->numab_state
CVE-2024-56618pmdomain: imx: gpcv2: Adjust delay after power up handshake

Showing top 20 of 221 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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