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CVE-2024-56746— fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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fbdev:sh7760fb模块中sh7760fb_alloc_mem函数中的内存泄漏。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 4a25e41831ee851c1365d8b41decc22493b18e6d< 0d3fb3b3e9d66f7b6346e3b90bc0ff48683539ce affected
4a25e41831ee851c1365d8b41decc22493b18e6d< d48cbfa90dce506030151915fa3346d67f964af4 affected
4a25e41831ee851c1365d8b41decc22493b18e6d< 29216bb390e36daeebef66abaa02d9751330252b affected
4a25e41831ee851c1365d8b41decc22493b18e6d< f4fbd70e15fafe36a7583954ce189aaf5536aeec affected
4a25e41831ee851c1365d8b41decc22493b18e6d< 40f4326ed05a3b3537556ff2a844958b9e779a98 affected
4a25e41831ee851c1365d8b41decc22493b18e6d< 3dd9df8e5f34c6fc4217a7498c1fb3c352d4afc2 affected
4a25e41831ee851c1365d8b41decc22493b18e6d< d10cd53e5a7fb3b7c6f83d4d9a5ea1d97a3ed9a5 affected
4a25e41831ee851c1365d8b41decc22493b18e6d< bad37309c8b8bf1cfc893750df0951a804009ca0 affected
… +12 more rows
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I. Basic Information for CVE-2024-56746

Vulnerability Information
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Vulnerability Title
fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem() When information such as info->screen_base is not ready, calling sh7760fb_free_mem() does not release memory correctly. Call dma_free_coherent() instead.
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fbdev:sh7760fb模块中sh7760fb_alloc_mem函数中的内存泄漏。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 4a25e41831ee851c1365d8b41decc22493b18e6d ~ 0d3fb3b3e9d66f7b6346e3b90bc0ff48683539ce -
Linux Linux 2.6.27 -

II. Public POCs for CVE-2024-56746

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III. Intelligence Information for CVE-2024-56746

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Patches & Fixes for CVE-2024-56746 (9)

Same Patch Batch · Linux · 2024-12-29 · 39 CVEs total

CVE-2024-56719 10.0 CRITICAL net: stmmac: fix TSO DMA API usage causing oops
CVE-2024-56718 9.8 CRITICAL net/smc: protect link down work from execute after lgr freed
CVE-2024-56720 7.8 HIGH bpf, sockmap: Several fixes to bpf_msg_pop_data
CVE-2024-56740 7.8 HIGH nfs/localio: must clear res.replen in nfs_local_read_done
CVE-2024-56709 7.8 HIGH io_uring: check if iowq is killed before queuing
CVE-2024-56715 7.8 HIGH ionic: Fix netdev notifier unregister on failure
CVE-2024-56717 7.5 HIGH net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic()
CVE-2024-56749 7.5 HIGH dlm: fix dlm_recover_members refcount on error
CVE-2024-56721 7.1 HIGH x86/CPU/AMD: Terminate the erratum_1386_microcode array
CVE-2024-56756 nvme-pci: fix freeing of the HMB descriptor table
CVE-2024-56742 vfio/mlx5: Fix an unwind issue in mlx5vf_add_migration_pages()
CVE-2024-56743 nfs_common: must not hold RCU while calling nfsd_file_put_local
CVE-2024-56755 netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
CVE-2024-56745 PCI: Fix reset_method_store() memory leak
CVE-2024-56744 f2fs: fix to avoid potential deadlock in f2fs_record_stop_reason()
CVE-2024-56748 scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb()
CVE-2024-56747 scsi: qedi: Fix a possible memory leak in qedi_alloc_and_init_sb()
CVE-2024-56750 erofs: fix blksize < PAGE_SIZE for file-backed mounts
CVE-2024-56727 octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_flows.c
CVE-2024-56754 crypto: caam - Fix the pointer passed to caam_qi_shutdown()

Showing top 20 of 39 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56746

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