CVE-2024-34777: linux Out-of-bounds Read
Vulnerability summary
CVE-2024-34777 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 20 · Related 18Timeline
- 21-06-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: dma-mapping: benchmark: fix node id validation While validating node ids in map_benchmark_ioctl(), node_possible() may be provided with invalid argument outside of [0,MAX_NUMNODES-1] range leading to: BUG: KASAN: wild-memory-access in map_benchmark_ioctl (kernel/dma/map_benchmark.c:214) Read of size 8 at addr 1fffffff8ccb6398 by task dma_map_benchma/971 CPU: 7 PID: 971 Comm: dma_map_benchma Not tainted 6.9.0-rc6 #37 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:117) kasan_report (mm/kasan/report.c:603) kasan_check_range (mm/kasan/generic.c:189) variable_test_bit (arch/x86/include/asm/bitops.h:227) [inline] arch_test_bit (arch/x86/include/asm/bitops.h:239) [inline] _test_bit at (include/asm-generic/bitops/instrumented-non-atomic.h:142) [inline] node_state (include/linux/nodemask.h:423) [inline] map_benchmark_ioctl (kernel/dma/map_benchmark.c:214) full_proxy_unlocked_ioctl (fs/debugfs/file.c:333) __x64_sys_ioctl (fs/ioctl.c:890) do_syscall_64 (arch/x86/entry/common.c:83) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) Compare node ids with sane bounds first. NUMA_NO_NODE is considered a special valid case meaning that benchmarking kthreads won't be bound to a cpuset of a given node. Found by Linux Verification Center (linuxtesting.org).
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
0.00 pp
From 0.22% 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 causeAffected systems
Ubuntu116 products
- linux< 5.15.0-121.131 | < 6.8.0-44.44
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1069.75 | < 6.8.0-1015.16
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 65789daa8087e125927230ccb7e1eab13999b0cf, < 35d31c8bd4722b107f5a2f5ddddce839de04b936 | ≥ 65789daa8087e125927230ccb7e1eab13999b0cf, < c57874265a3c5206d7aece3793bb2fc9abcd7570 | ≥ 65789daa8087e125927230ccb7e1eab13999b0cf, < 34a816d8735f3924b74be8e5bf766ade1f3bd10b | ≥ 65789daa8087e125927230ccb7e1eab13999b0cf, < 63e7e05a48a35308aeddd7ecccb68363a5988e87 | ≥ 65789daa8087e125927230ccb7e1eab13999b0cf, < 1ff05e723f7ca30644b8ec3fb093f16312e408ad | 5.11
- linux_kernel≥ 5.11, < 5.15.161 | ≥ 5.16, < 6.1.93 | ≥ 6.2, < 6.6.33 | ≥ 6.7, < 6.9.4 | 6.10:rc1
Debian1 product
- linux< 6.1.94-1 | < 6.9.7-1
3 vendors · 119 products