CVE-2023-54310

Summary

In the Linux kernel, the following vulnerability has been resolved:

scsi: message: mptlan: Fix use after free bug in mptlan_remove() due to race condition

mptlan_probe() calls mpt_register_lan_device() which initializes the &priv->post_buckets_task workqueue. A call to mpt_lan_wake_post_buckets_task() will subsequently start the work.

During driver unload in mptlan_remove() the following race may occur:

CPU0 CPU1

                |mpt_lan_post_receive_buckets_work()

mptlan_remove() | free_netdev() | kfree(dev); | | | dev->mtu | //use

Fix this by finishing the work prior to cleaning up in mptlan_remove().

[mkp: we really should remove mptlan instead of attempting to fix it]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 92f869693d84e813895ff4d25363744575515423affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 60c8645ad6f5b722615383d595d63b62b07a13c3affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 410e610a96c52a7b41e2ab6c9ca60868d9acecceaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 697f92f8317e538d8409a0c95d6370eb40b34c05affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e84282efc87f2414839f6e15c31b4daa34ebaac1affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9c6da3b7f12528cd52c458b33496a098b838fcfcaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 48daa4a3015d859ee424948844ce3c12f2fe44e6affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f486893288f3e9b171b836f43853a6426515d800affected
LinuxLinux2.6.12affected
LinuxLinux0 < 2.6.12unaffected
LinuxLinux4.14.316 <= 4.14.*unaffected
LinuxLinux4.19.284 <= 4.19.*unaffected
LinuxLinux5.4.244 <= 5.4.*unaffected
LinuxLinux5.10.181 <= 5.10.*unaffected
LinuxLinux5.15.113 <= 5.15.*unaffected
LinuxLinux6.1.30 <= 6.1.*unaffected
LinuxLinux6.3.4 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References