| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Fix unremoved procfs host directory regression\n\nCommit fc663711b944 (\"scsi: core: Remove the /proc/scsi/${proc_name}\ndirectory earlier\") fixed a bug related to modules loading/unloading, by\nadding a call to scsi_proc_hostdir_rm() on scsi_remove_host(). But that led\nto a potential duplicate call to the hostdir_rm() routine, since it's also\ncalled from scsi_host_dev_release(). That triggered a regression report,\nwhich was then fixed by commit be03df3d4bfe (\"scsi: core: Fix a procfs host\ndirectory removal regression\"). The fix just dropped the hostdir_rm() call\nfrom dev_release().\n\nBut it happens that this proc directory is created on scsi_host_alloc(),\nand that function \"pairs\" with scsi_host_dev_release(), while\nscsi_remove_host() pairs with scsi_add_host(). In other words, it seems the\nreason for removing the proc directory on dev_release() was meant to cover\ncases in which a SCSI host structure was allocated, but the call to\nscsi_add_host() didn't happen. And that pattern happens to exist in some\nerror paths, for example.\n\nSyzkaller causes that by using USB raw gadget device, error'ing on\nusb-storage driver, at usb_stor_probe2(). By checking that path, we can see\nthat the BadDevice label leads to a scsi_host_put() after a SCSI host\nallocation, but there's no call to scsi_add_host() in such path. That leads\nto messages like this in dmesg (and a leak of the SCSI host proc\nstructure):\n\nusb-storage 4-1:87.51: USB Mass Storage device detected\nproc_dir_entry 'scsi/usb-storage' already registered\nWARNING: CPU: 1 PID: 3519 at fs/proc/generic.c:377 proc_register+0x347/0x4e0 fs/proc/generic.c:376\n\nThe proper fix seems to still call scsi_proc_hostdir_rm() on dev_release(),\nbut guard that with the state check for SHOST_CREATED; there is even a\ncomment in scsi_host_dev_release() detailing that: such conditional is\nmeant for cases where the SCSI host was allocated but there was no calls to\n{add,remove}_host(), like the usb-storage case.\n\nThis is what we propose here and with that, the error path of usb-storage\ndoes not trigger the warning anymore." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/scsi/hosts.c" |
| ], |
| "versions": [ |
| { |
| "version": "88c3d3bb6469cea929ac68fd326bdcbefcdfdd83", |
| "lessThan": "0053f15d50d50c9312d8ab9c11e2e405812dfcac", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "68c665bb185037e7eb66fb792c61da9d7151e99c", |
| "lessThan": "5c2386ba80e779a92ec3bb64ccadbedd88f779b1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "2a764d55e938743efa7c2cba7305633bcf227f09", |
| "lessThan": "cea234bb214b17d004dfdccce4491e6ff57c96ee", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7e0ae8667fcdd99d1756922e1140cac75f5fa279", |
| "lessThan": "3678cf67ff7136db1dd3bf63c361650db5d92889", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f", |
| "lessThan": "d4c34782b6d7b1e68d18d9549451b19433bd4c6c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f", |
| "lessThan": "e293c773c13b830cdc251f155df2254981abc320", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f", |
| "lessThan": "f4ff08fab66eb5c0b97e1a24edac052fb40bf5d7", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f", |
| "lessThan": "f23a4d6e07570826fe95023ca1aa96a011fa9f84", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "73f030d4ef6d1ad17f824a0a2eb637ef7a9c7d51", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/scsi/hosts.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.3", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.3", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.274", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.215", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.154", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.84", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.24", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.7.12", |
| "lessThanOrEqual": "6.7.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.8.3", |
| "lessThanOrEqual": "6.8.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.4.238", |
| "versionEndExcluding": "5.4.274" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10.176", |
| "versionEndExcluding": "5.10.215" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.15.104", |
| "versionEndExcluding": "5.15.154" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1.21", |
| "versionEndExcluding": "6.1.84" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.3", |
| "versionEndExcluding": "6.6.24" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.3", |
| "versionEndExcluding": "6.7.12" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.3", |
| "versionEndExcluding": "6.8.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.3", |
| "versionEndExcluding": "6.9" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.2.8" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/0053f15d50d50c9312d8ab9c11e2e405812dfcac" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5c2386ba80e779a92ec3bb64ccadbedd88f779b1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/cea234bb214b17d004dfdccce4491e6ff57c96ee" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3678cf67ff7136db1dd3bf63c361650db5d92889" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/d4c34782b6d7b1e68d18d9549451b19433bd4c6c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e293c773c13b830cdc251f155df2254981abc320" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f4ff08fab66eb5c0b97e1a24edac052fb40bf5d7" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f23a4d6e07570826fe95023ca1aa96a011fa9f84" |
| } |
| ], |
| "title": "scsi: core: Fix unremoved procfs host directory regression", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-26935", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
