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CVE-2024-26878— quota: Fix potential NULL pointer dereference

EPSS 0.01% · P0
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I. Basic Information for CVE-2024-26878

Vulnerability Information
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Vulnerability Title
quota: Fix potential NULL pointer dereference
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: quota: Fix potential NULL pointer dereference Below race may cause NULL pointer dereference P1 P2 dquot_free_inode quota_off drop_dquot_ref remove_dquot_ref dquots = i_dquot(inode) dquots = i_dquot(inode) srcu_read_lock dquots[cnt]) != NULL (1) dquots[type] = NULL (2) spin_lock(&dquots[cnt]->dq_dqb_lock) (3) .... If dquot_free_inode(or other routines) checks inode's quota pointers (1) before quota_off sets it to NULL(2) and use it (3) after that, NULL pointer dereference will be triggered. So let's fix it by using a temporary pointer to avoid this issue.
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 7b9ca4c61bc278b771fb57d6290a31ab1fc7fdac ~ 8514899c1a4edf802f03c408db901063aa3f05a1 -
LinuxLinux 4.14 -

II. Public POCs for CVE-2024-26878

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III. Intelligence Information for CVE-2024-26878

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Same Patch Batch · Linux · 2024-04-17 · 100 CVEs total

CVE-2024-26884bpf: Fix hashtab overflow check on 32-bit arches
CVE-2024-26877crypto: xilinx - call finalize with bh disabled
CVE-2024-26873scsi: hisi_sas: Fix a deadlock issue related to automatic dump
CVE-2024-26872RDMA/srpt: Do not register event handler until srpt device is fully setup
CVE-2024-26871f2fs: fix NULL pointer dereference in f2fs_submit_page_write()
CVE-2024-26870NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
CVE-2024-26869f2fs: fix to truncate meta inode pages forcely
CVE-2024-26874drm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip
CVE-2024-26882net: ip_tunnel: make sure to pull inner header in ip_tunnel_rcv()
CVE-2024-26883bpf: Fix stackmap overflow check on 32-bit arches
CVE-2024-26881net: hns3: fix kernel crash when 1588 is received on HIP08 devices
CVE-2024-26885bpf: Fix DEVMAP_HASH overflow check on 32-bit arches
CVE-2024-26886Bluetooth: af_bluetooth: Fix deadlock
CVE-2024-26887Bluetooth: btusb: Fix memory leak
CVE-2024-26888Bluetooth: msft: Fix memory leak
CVE-2024-26889Bluetooth: hci_core: Fix possible buffer overflow
CVE-2024-26890Bluetooth: btrtl: fix out of bounds memory access
CVE-2024-26891iommu/vt-d: Don't issue ATS Invalidation request when device is disconnected
CVE-2024-26892wifi: mt76: mt7921e: fix use-after-free in free_irq()
CVE-2024-26893firmware: arm_scmi: Fix double free in SMC transport cleanup path

Showing top 20 of 100 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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