CVE-2023-52639— KVM: s390: vsie: fix race during shadow creation
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。攻击者利用该漏洞导致程序崩溃。
Possible ATT&CK Techniques 2 AI
T1003 · OS Credential Dumping T1203 · Exploitation for Client ExecutionAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a3508fbe9dc6dd3bece0c7bf889cc085a011738c< 5df3b81a567eb565029563f26f374ae3803a1dfc |
affected |
a3508fbe9dc6dd3bece0c7bf889cc085a011738c< f5572c0323cf8b4f1f0618178648a25b8fb8a380 |
affected | ||
a3508fbe9dc6dd3bece0c7bf889cc085a011738c< 28bb27824f25f36e5f80229a358d66ee09244082 |
affected | ||
a3508fbe9dc6dd3bece0c7bf889cc085a011738c< fe752331d4b361d43cfd0b89534b4b2176057c32 |
affected | ||
4.8 |
affected | ||
< 4.8 |
unaffected | ||
6.1.82≤ 6.1.* |
unaffected | ||
6.6.22≤ 6.6.* |
unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2023-52639
Vulnerability Information
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Vulnerability Title
KVM: s390: vsie: fix race during shadow creation
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: s390: vsie: fix race during shadow creation
Right now it is possible to see gmap->private being zero in
kvm_s390_vsie_gmap_notifier resulting in a crash. This is due to the
fact that we add gmap->private == kvm after creation:
static int acquire_gmap_shadow(struct kvm_vcpu *vcpu,
struct vsie_page *vsie_page)
{
[...]
gmap = gmap_shadow(vcpu->arch.gmap, asce, edat);
if (IS_ERR(gmap))
return PTR_ERR(gmap);
gmap->private = vcpu->kvm;
Let children inherit the private field of the parent.
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。攻击者利用该漏洞导致程序崩溃。
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
II. Public POCs for CVE-2023-52639
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2023-52639 (4)
Same Patch Batch · Linux · 2024-04-03 · 94 CVEs total
| CVE-2024-26760 | 9.8 CRITICAL | scsi: target: pscsi: Fix bio_put() for error case |
| CVE-2024-26779 | 8.8 HIGH | wifi: mac80211: fix race condition on enabling fast-xmit |
| CVE-2024-26689 | 8.8 HIGH | ceph: prevent use-after-free in encode_cap_msg() |
| CVE-2024-26692 | 8.3 HIGH | smb: Fix regression in writes when non-standard maximum write size negotiated |
| CVE-2024-26736 | 8.1 HIGH | afs: Increase buffer size in afs_update_volume_status() |
| CVE-2024-26699 | 7.8 HIGH | drm/amd/display: Fix array-index-out-of-bounds in dcn35_clkmgr |
| CVE-2024-26739 | 7.8 HIGH | net/sched: act_mirred: don't override retval if we already lost the skb |
| CVE-2024-26762 | 7.8 HIGH | cxl/pci: Skip to handle RAS errors if CXL.mem device is detached |
| CVE-2024-26766 | 7.8 HIGH | IB/hfi1: Fix sdma.h tx->num_descs off-by-one error |
| CVE-2024-26772 | 7.8 HIGH | ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal() |
| CVE-2024-26773 | 7.8 HIGH | ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() |
| CVE-2024-26748 | 7.8 HIGH | usb: cdns3: fix memory double free when handle zero packet |
| CVE-2024-26697 | 7.8 HIGH | nilfs2: fix data corruption in dsync block recovery for small block sizes |
| CVE-2024-26737 | 7.8 HIGH | bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel |
| CVE-2024-26718 | 7.8 HIGH | dm-crypt, dm-verity: disable tasklets |
| CVE-2024-26712 | 7.8 HIGH | powerpc/kasan: Fix addr error caused by page alignment |
| CVE-2023-52637 | 7.8 HIGH | can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER) |
| CVE-2024-26706 | 7.8 HIGH | parisc: Fix random data corruption from exception handler |
| CVE-2024-26728 | 7.8 HIGH | drm/amd/display: fix null-pointer dereference on edid reading |
| CVE-2024-26704 | 7.8 HIGH | ext4: fix double-free of blocks due to wrong extents moved_len |
Showing top 20 of 94 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same vendor: Linux
-
CVE-2026-98385
sched/cache: Decouple sched_cache_group from mm to fix UAF -
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
CVE-2026-98382
bpf: Reject dev-bound-only programs on other devices -
CVE-2026-98381
veth: manage XDP program pointers during channel resize
V. Comments for CVE-2023-52639
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