Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: nvme: fix command effects log lifetime for multipath heads KASAN reported a use-after-free when an I/O passthrough command was sent through a multipath namespace head after the controller path that first created the head had been removed: BUG: KASAN: slab-use-after-free in nvme_command_effects+0x192/0x200 [nvme_core] Read of size 4 at addr ffff888141b14400 by task nvme/19811 nvme_command_effects+0x192/0x200 [nvme_core] nvme_cmd_allowed+0x7e/0x1b0 [nvme_core] nvme_user_cmd.constprop.0+0x1b5/0x450 [nvme_core] nvme_ns_head_chr_ioctl+0xf4/0x2a0 [nvme_core] Move the log cache to the subsystem, with one entry per command set. Both controllers and namespace heads hold subsystem references, keeping their log pointers valid until subsystem release.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected be93e87e780253780df9bb6ecc9bc1199b0d94c3 before 351d1c47e45b2b35780d0548b1012d7242ba298d; affected be93e87e780253780df9bb6ecc9bc1199b0d94c3 before 72ece656abd4de8645a421fb482d7a11e6533a45 |
| Linux / Linux | affected 5.9; unaffected 0 before 5.9; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.