CVE-2024-50072: linux
Vulnerability summary
CVE-2024-50072 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 31 · Related 30Timeline
- 29-10-2024PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Use code segment selector for VERW operand Robert Gill reported below #GP in 32-bit mode when dosemu software was executing vm86() system call: general protection fault: 0000 [#1] PREEMPT SMP CPU: 4 PID: 4610 Comm: dosemu.bin Not tainted 6.6.21-gentoo-x86 #1 Hardware name: Dell Inc. PowerEdge 1950/0H723K, BIOS 2.7.0 10/30/2010 EIP: restore_all_switch_stack+0xbe/0xcf EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000 ESI: 00000000 EDI: 00000000 EBP: 00000000 ESP: ff8affdc DS: 0000 ES: 0000 FS: 0000 GS: 0033 SS: 0068 EFLAGS: 00010046 CR0: 80050033 CR2: 00c2101c CR3: 04b6d000 CR4: 000406d0 Call Trace: show_regs+0x70/0x78 die_addr+0x29/0x70 exc_general_protection+0x13c/0x348 exc_bounds+0x98/0x98 handle_exception+0x14d/0x14d exc_bounds+0x98/0x98 restore_all_switch_stack+0xbe/0xcf exc_bounds+0x98/0x98 restore_all_switch_stack+0xbe/0xcf This only happens in 32-bit mode when VERW based mitigations like MDS/RFDS are enabled. This is because segment registers with an arbitrary user value can result in #GP when executing VERW. Intel SDM vol. 2C documents the following behavior for VERW instruction: #GP(0) - If a memory operand effective address is outside the CS, DS, ES, FS, or GS segment limit. CLEAR_CPU_BUFFERS macro executes VERW instruction before returning to user space. Use %cs selector to reference VERW operand. This ensures VERW will not #GP for an arbitrary user %ds. [ mingo: Fixed the SOB chain. ]
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.23%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
0.00 pp
From 0.23% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu122 products
- linux< 5.15.0-133.144 | < 6.8.0-56.58
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1078.85 | < 6.8.0-1025.27
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 50f021f0b985629accf10481a6e89af8b9700583, < bfd1d223d80cb29a210caa1bd5e21f0816d58f02 | ≥ d54de9f2a127090f2017184e8257795b487d5312, < ada431c6c31a2c8c37991c46089af5caa23a9c6e | ≥ 2e3087505ddb8ba2d3d4c81306cca11e868fcdb9, < 38c5fe74f3bef98f75d16effa49836d50c9b6097 | ≥ ca13d8cd8dac25558da4ee8df4dc70e8e7f9d762, < 481b477ab63c7245715a3e57ba79eb87c2dc0d02 | ≥ a0e2dab44d22b913b4c228c8b52b2a104434b0b3, < bc576fbaf82deded606e69a00efe9752136bf91d | ≥ a0e2dab44d22b913b4c228c8b52b2a104434b0b3, < e4d2102018542e3ae5e297bc6e229303abff8a0f | 51eca9f1fd047b500137d021f882d93f03280118 | ≥ 5.10.215, < 5.10.229 | ≥ 5.15.154, < 5.15.171 | ≥ 6.1.81, < 6.1.116 | ≥ 6.6.21, < 6.6.58 | ≥ 6.7.9, < 6.8 | 6.8
- linux_kernel≥ 5.10.215, < 5.11 | ≥ 5.15.154, < 5.16 | ≥ 6.1.81, < 6.2 | ≥ 6.6.21, < 6.6.58 | ≥ 6.7, < 6.11.5 | ≥ 6.7.9, < 6.8 | 6.12:rc1 | 6.12:rc2 | 6.12:rc3
Debian1 product
- linux< 6.1.119-1 | < 6.11.5-1
3 vendors · 125 products
