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CVE-2024-57892— ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv

EPSS 0.02% · P5
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I. Basic Information for CVE-2024-57892

Vulnerability Information
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Vulnerability Title
ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv When mounting ocfs2 and then remounting it as read-only, a slab-use-after-free occurs after the user uses a syscall to quota_getnextquota. Specifically, sb_dqinfo(sb, type)->dqi_priv is the dangling pointer. During the remounting process, the pointer dqi_priv is freed but is never set as null leaving it to be accessed. Additionally, the read-only option for remounting sets the DQUOT_SUSPENDED flag instead of setting the DQUOT_USAGE_ENABLED flags. Moreover, later in the process of getting the next quota, the function ocfs2_get_next_id is called and only checks the quota usage flags and not the quota suspended flags. To fix this, I set dqi_priv to null when it is freed after remounting with read-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id. [akpm@linux-foundation.org: coding-style cleanups]
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，该漏洞源于内存释放后重用。
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 8f9e8f5fcc059a3cba87ce837c88316797ef3645 ~ 58f9e20e2a7602e1dd649a1ec4790077c251cb6c -
LinuxLinux 4.6 -

II. Public POCs for CVE-2024-57892

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III. Intelligence Information for CVE-2024-57892

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Same Patch Batch · Linux · 2025-01-15 · 32 CVEs total

CVE-2024-57899wifi: mac80211: fix mbss changed flags corruption on 32 bit systems
CVE-2024-57857RDMA/siw: Remove direct link to net_device
CVE-2024-57844drm/xe: Fix fault on fd close after unbind
CVE-2024-57841net: fix memory leak in tcp_conn_request()
CVE-2024-57802netrom: check buffer length before accessing it
CVE-2024-57801net/mlx5e: Skip restore TC rules for vport rep without loaded flag
CVE-2024-57795RDMA/rxe: Remove the direct link to net_device
CVE-2024-54031netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext
CVE-2024-53681nvmet: Don't overflow subsysnqn
CVE-2024-39282net: wwan: t7xx: Fix FSM command timeout issue
CVE-2024-36476RDMA/rtrs: Ensure 'ib_sge list' is accessible
CVE-2025-21629net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets
CVE-2024-57903net: restrict SO_REUSEPORT to inet sockets
CVE-2024-57901af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK
CVE-2024-57902af_packet: fix vlan_get_tci() vs MSG_PEEK
CVE-2024-57900ila: serialize calls to nf_register_net_hooks()
CVE-2024-57882mptcp: fix TCP options overflow.
CVE-2024-57898wifi: cfg80211: clear link ID from bitmap during link delete after clean up
CVE-2024-57897drm/amdkfd: Correct the migration DMA map direction
CVE-2024-57896btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount

Showing top 20 of 32 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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