cbcvebase.
CVE-2025-40118
published 2025-11-12

CVE-2025-40118: In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod Since commit f7b705c238d1 ("scsi…

PriorityP426high7.8
EPSS
0.21%
10.9th percentile
In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod Since commit f7b705c238d1 ("scsi: pm80xx: Set phy_attached to zero when device is gone") UBSAN reports: UBSAN: array-index-out-of-bounds in drivers/scsi/pm8001/pm8001_sas.c:786:17 index 28 is out of range for type 'pm8001_phy [16]' on rmmod when using an expander. For a direct attached device, attached_phy contains the local phy id. For a device behind an expander, attached_phy contains the remote phy id, not the local phy id. I.e. while pm8001_ha will have pm8001_ha->chip->n_phy local phys, for a device behind an expander, attached_phy can be much larger than pm8001_ha->chip->n_phy (depending on the amount of phys of the expander). E.g. on my system pm8001_ha has 8 phys with phy ids 0-7. One of the ports has an expander connected. The expander has 31 phys with phy ids 0-30. The pm8001_ha->phy array only contains the phys of the HBA. It does not contain the phys of the expander. Thus, it is wrong to use attached_phy to index the pm8001_ha->phy array for a device behind an expander. Thus, we can only clear phy_attached for devices that are directly attached.

Affected

39 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.158-1 (bookworm)linux 6.1.158-1 (bookworm)
debianlinux-6.1< linux 6.1.158-1 (bookworm)linux 6.1.158-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux>= 05b512879eab41faa515b67fa3896d0005e97909 < d94be0a6ae9ade706d4270e740bdb4f79953a7fcd94be0a6ae9ade706d4270e740bdb4f79953a7fc
linuxlinux>= 0f9802f174227f553959422f844eeb9ba72467fe < 9326a1541e1b7ed3efdbab72061b82cf01c6477a9326a1541e1b7ed3efdbab72061b82cf01c6477a
linuxlinux>= 1d8f9378cb4800c18e20d80ecd605b2b93e87a03 < eef5ef400893f8e3dbb09342583be0cdc716d566eef5ef400893f8e3dbb09342583be0cdc716d566
linuxlinux>= 30e482dfb8f27d22f518695d4bcb5e7f4c6cb08a < 9c671d4dbfbfb0d73cfdfb706afb36d9ad60a5829c671d4dbfbfb0d73cfdfb706afb36d9ad60a582
linuxlinux>= 5.10.237 < 5.10.2465.10.246
linuxlinux>= 5.15.181 < 5.15.1955.15.195
linuxlinux>= 5.4.293 < 5.4.3015.4.301
linuxlinux>= 6.1.136 < 6.1.1566.1.156
linuxlinux>= 6.12.26 < 6.12.536.12.53
linuxlinux>= 6.14.5 < 6.156.15
linuxlinux>= 6.6.89 < 6.6.1126.6.112
linuxlinux>= a862d24e1fc3ab1b5e5f20878d2898cea346d0ec < e62251954a128a2d0fcbc19e5fa39e08935bb628e62251954a128a2d0fcbc19e5fa39e08935bb628
linuxlinux>= bc2140c8136200b4437e1abc0fb659968cb9baab < 45acbf154befedd9bc135f5e031fe7855d1e649345acbf154befedd9bc135f5e031fe7855d1e6493
linuxlinux>= f7b705c238d1483f0a766e2b20010f176e5c0fb7 < 83ced3c206c292458e47c7fac54223abc714158583ced3c206c292458e47c7fac54223abc7141585
linuxlinux>= f7b705c238d1483f0a766e2b20010f176e5c0fb7 < 251be2f6037fb7ab399f68cd7428ff274133d693251be2f6037fb7ab399f68cd7428ff274133d693
linuxlinux_kernel>= 0 < 5.10.247-15.10.247-1
linuxlinux_kernel>= 0 < 6.1.158-16.1.158-1
linuxlinux_kernel>= 0 < 6.12.57-16.12.57-1
linuxlinux_kernel>= 0 < 6.17.6-16.17.6-1
linuxlinux_kernel>= 0 < 5.4.3015.4.301
linuxlinux_kernel>= 0 < 5.15.0-170.1805.15.0-170.180

CVSS provenance

osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_redhat5.8MEDIUM
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