Description
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() When if_type equals zero and pci_resource_start(pdev, PCI_64BIT_BAR4) returns false, drbl_regs_memmap_p is not remapped. This passes a NULL pointer to iounmap(), which can trigger a WARN() on certain arches. When if_type equals six and pci_resource_start(pdev, PCI_64BIT_BAR4) returns true, drbl_regs_memmap_p may has been remapped and ctrl_regs_memmap_p is not remapped. This is a resource leak and passes a NULL pointer to iounmap(). To fix these issues, we need to add null checks before iounmap(), and change some goto labels.
Product status
1351e69fc6db30e186295f1c9495d03cef6a01a2 (git) before 74d90f92eafe8ccd12827228236a28a94eda6bcc
1351e69fc6db30e186295f1c9495d03cef6a01a2 (git) before bab8dc38b1a0a12bc064fc064269033bdcf5b88e
1351e69fc6db30e186295f1c9495d03cef6a01a2 (git) before fd8c83d8375b9dac1949f2753485a5c055ebfad0
1351e69fc6db30e186295f1c9495d03cef6a01a2 (git) before e6f1ef4a53856ed000b0f7265d7e16dcb00f4243
1351e69fc6db30e186295f1c9495d03cef6a01a2 (git) before 631d0fab143bef85ea0813596f1dda36e2b9724c
1351e69fc6db30e186295f1c9495d03cef6a01a2 (git) before 7e5a54d1f00725a739dcd20f616d82eff4f764bd
1351e69fc6db30e186295f1c9495d03cef6a01a2 (git) before 91a0c0c1413239d0548b5aac4c82f38f6d53a91e
4.17
Any version before 4.17
5.4.243 (semver)
5.10.180 (semver)
5.15.111 (semver)
6.1.28 (semver)
6.2.15 (semver)
6.3.2 (semver)
6.4 (original_commit_for_fix)
References
git.kernel.org/...c/74d90f92eafe8ccd12827228236a28a94eda6bcc
git.kernel.org/...c/bab8dc38b1a0a12bc064fc064269033bdcf5b88e
git.kernel.org/...c/fd8c83d8375b9dac1949f2753485a5c055ebfad0
git.kernel.org/...c/e6f1ef4a53856ed000b0f7265d7e16dcb00f4243
git.kernel.org/...c/631d0fab143bef85ea0813596f1dda36e2b9724c
git.kernel.org/...c/7e5a54d1f00725a739dcd20f616d82eff4f764bd
git.kernel.org/...c/91a0c0c1413239d0548b5aac4c82f38f6d53a91e
