CVE-2026-98545
- Source
- https://cve.org/CVERecord?id=CVE-2026-98545
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98545.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98545
- Downstream
- Published
- 2026-10-18T15:18:13Z
- Modified
- 2026-10-20T02:31:04Z
- Summary
- ata: libata-scsi: bound the ATA passthru sense descriptor writes
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ata: libata-scsi: bound the ATA passthru sense descriptor writes
When an ATA PASS-THROUGH command to an ATAPI device fails, the sense buffer holds the device's REQUEST SENSE reply, and ata_scsi_set_passthru_sense_fields() trusts its additional length byte, sb[7], when adding the ATA Status Return descriptor. A faulty or malicious device can use that to make the kernel read and write past the 96-byte buffer in three ways:
- scsi_sense_desc_find() is passed sb[7] + 8 as the buffer length, so its clamp against sb[7] does nothing and the walk runs off the end.
- A type-9 descriptor found near the end is filled in unchecked.
- A new descriptor at sb[8 + len] needs len + 22 bytes, not len + 14, so len 75..82 writes up to 8 bytes past the end.
Reproduced with KASAN under qemu, with the emulated ATAPI REQUEST SENSE reply patched:
BUG: KASAN: slab-out-of-bounds in scsi_sense_desc_find+0x1a5/0x210 BUG: KASAN: slab-out-of-bounds in ata_scsi_qc_complete+0x1a15/0x1a50
Both are gone with this patch, and a valid descriptor is still filled in.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98545.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1603abb0c50420e97cf4a1feddbd5e183c5fdf86
- https://git.kernel.org/stable/c/80320b278fea07ffcda3f57b67b61658e0a4e1ca
- https://git.kernel.org/stable/c/80fbb0bc4d11683c88f2f9d3997ea02fcada5408
- https://git.kernel.org/stable/c/c698f6deabf680f8f4a1727ef2dc80fe78815fbf
- https://git.kernel.org/stable/c/d9a7147b93624660626cd7c3b1143715699e1f5c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98545.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98545
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedce477199c53e3db5a096981c565e232498ddeae4Fixedc698f6deabf680f8f4a1727ef2dc80fe78815fbf
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced97981926224afe17ba3e22e0c2b7dd8b516ee574Fixedd9a7147b93624660626cd7c3b1143715699e1f5cFixed1603abb0c50420e97cf4a1feddbd5e183c5fdf86Fixed80fbb0bc4d11683c88f2f9d3997ea02fcada5408Fixed80320b278fea07ffcda3f57b67b61658e0a4e1ca
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.44Fixed6.6.158
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.10.3Fixed6.11
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced67d9d0b6ae4aaf2c4cef103a96a145c7fdfb15f8
Affected versions
v6.*
v6.10.10
v6.10.11
v6.10.12
v6.10.13
v6.10.14
v6.10.3
v6.10.4
v6.10.5
v6.10.6
v6.10.7
v6.10.8
v6.10.9
v6.6.100
v6.6.101
v6.6.102
v6.6.103
v6.6.104
v6.6.105
v6.6.106
v6.6.107
v6.6.108
v6.6.109
v6.6.110
v6.6.111
v6.6.112
v6.6.113
v6.6.114
v6.6.115
v6.6.116
v6.6.117
v6.6.118
v6.6.119
v6.6.120
v6.6.121
v6.6.122
v6.6.123
v6.6.124
v6.6.125
v6.6.126
v6.6.127
v6.6.128
v6.6.129
v6.6.130
v6.6.131
v6.6.132
v6.6.133
v6.6.134
v6.6.135
v6.6.136
v6.6.137
v6.6.138
v6.6.139
v6.6.140
v6.6.141
v6.6.142
v6.6.143
v6.6.144
v6.6.145
v6.6.146
v6.6.147
v6.6.148
v6.6.149
v6.6.150
v6.6.151
v6.6.152
v6.6.153
v6.6.154
v6.6.155
v6.6.156
v6.6.157
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.60
v6.6.61
v6.6.62
v6.6.63
v6.6.64
v6.6.65
v6.6.66
v6.6.67
v6.6.68
v6.6.69
v6.6.70
v6.6.71
v6.6.72
v6.6.73
v6.6.74
v6.6.75
v6.6.76
v6.6.77
v6.6.78
v6.6.79
v6.6.80
v6.6.81
v6.6.82
v6.6.83
v6.6.84
v6.6.85
v6.6.86
v6.6.87
v6.6.88
v6.6.89
v6.6.90
v6.6.91
v6.6.92
v6.6.93
v6.6.94
v6.6.95
v6.6.96
v6.6.97
v6.6.98
v6.6.99
Linux / Kernel
Package
- Name
- Kernel