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CVE-2024-26843— efi: runtime: Fix potential overflow of soft-reserved region size

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soft-reserved区域大小存在溢出问题。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 16993c0f0a43213e23666ea40e9163887f593ac7< 4fff3d735baea104017f2e3c245e27cdc79f2426 affected
16993c0f0a43213e23666ea40e9163887f593ac7< 4aa36b62c3eaa869860bf78b1146e9f2b5f782a9 affected
16993c0f0a43213e23666ea40e9163887f593ac7< 700c3f642c32721f246e09d3a9511acf40ae42be affected
16993c0f0a43213e23666ea40e9163887f593ac7< cf3d6813601fe496de7f023435e31bfffa74ae70 affected
16993c0f0a43213e23666ea40e9163887f593ac7< 156cb12ffdcf33883304f0db645e1eadae712fe0 affected
16993c0f0a43213e23666ea40e9163887f593ac7< de1034b38a346ef6be25fe8792f5d1e0684d5ff4 affected
5.5 affected
< 5.5 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-26843

Vulnerability Information
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Vulnerability Title
efi: runtime: Fix potential overflow of soft-reserved region size
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: efi: runtime: Fix potential overflow of soft-reserved region size md_size will have been narrowed if we have >= 4GB worth of pages in a soft-reserved region.
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soft-reserved区域大小存在溢出问题。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 16993c0f0a43213e23666ea40e9163887f593ac7 ~ 4fff3d735baea104017f2e3c245e27cdc79f2426 -
Linux Linux 5.5 -

II. Public POCs for CVE-2024-26843

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III. Intelligence Information for CVE-2024-26843

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Mailing List Discussions for CVE-2024-26843 (1)

Other References for CVE-2024-26843 (6)

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

CVE-2024-26853 9.8 CRITICAL igc: avoid returning frame twice in XDP_REDIRECT
CVE-2024-26877 9.8 CRITICAL crypto: xilinx - call finalize with bh disabled
CVE-2024-26828 9.4 CRITICAL cifs: fix underflow in parse_server_interfaces()
CVE-2024-26856 8.8 HIGH net: sparx5: Fix use after free inside sparx5_del_mact_entry
CVE-2024-26822 8.7 HIGH smb: client: set correct id, uid and cruid for multiuser automounts
CVE-2024-26830 8.4 HIGH i40e: Do not allow untrusted VF to remove administratively set MAC
CVE-2024-26883 7.8 HIGH bpf: Fix stackmap overflow check on 32-bit arches
CVE-2024-26872 7.8 HIGH RDMA/srpt: Do not register event handler until srpt device is fully setup
CVE-2024-26824 7.8 HIGH crypto: algif_hash - Remove bogus SGL free on zero-length error path
CVE-2024-26870 7.8 HIGH NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
CVE-2024-26823 7.8 HIGH irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems
CVE-2024-26869 7.8 HIGH f2fs: fix to truncate meta inode pages forcely
CVE-2024-26911 7.8 HIGH drm/buddy: Fix alloc_range() error handling code
CVE-2024-26838 7.8 HIGH RDMA/irdma: Fix KASAN issue with tasklet
CVE-2024-26865 7.8 HIGH rds: tcp: Fix use-after-free of net in reqsk_timer_handler().
CVE-2024-26864 7.8 HIGH tcp: Fix refcnt handling in __inet_hash_connect().
CVE-2024-26890 7.8 HIGH Bluetooth: btrtl: fix out of bounds memory access
CVE-2024-26895 7.8 HIGH wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces
CVE-2024-26898 7.8 HIGH aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
CVE-2024-26852 7.8 HIGH net/ipv6: avoid possible UAF in ip6_route_mpath_notify()

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26843

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