{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2022-49765", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/9p: use a dedicated spinlock for trans_fd\n\nShamelessly copying the explanation from Tetsuo Handa's suggested\npatch[1] (slightly reworded):\nsyzbot is reporting inconsistent lock state in p9_req_put()[2],\nfor p9_tag_remove() from p9_req_put() from IRQ context is using\nspin_lock_irqsave() on \"struct p9_client\"->lock but trans_fd\n(not from IRQ context) is using spin_lock().\n\nSince the locks actually protect different things in client.c and in\ntrans_fd.c, just replace trans_fd.c's lock by a new one specific to the\ntransport (client.c's protect the idr for fid/tag allocations,\nwhile trans_fd.c's protects its own req list and request status field\nthat acts as the transport's state machine)" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "version_value": "43bbadb7e4636dc02f6a283c2a39e6438e6173cd" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "5.15.80", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.10", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/43bbadb7e4636dc02f6a283c2a39e6438e6173cd", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/43bbadb7e4636dc02f6a283c2a39e6438e6173cd" }, { "url": "https://git.kernel.org/stable/c/717b9b4f38703d7f5293059e3a242d16f76fa045", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/717b9b4f38703d7f5293059e3a242d16f76fa045" }, { "url": "https://git.kernel.org/stable/c/296ab4a813841ba1d5f40b03190fd1bd8f25aab0", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/296ab4a813841ba1d5f40b03190fd1bd8f25aab0" } ] }, "generator": { "engine": "bippy-1.1.0" } }