{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49625", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:21:30.421Z", "datePublished": "2025-02-26T02:23:40.786Z", "dateUpdated": "2026-05-11T19:03:32.996Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:03:32.996Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix kernel panic when creating VF\n\nWhen creating VFs a kernel panic can happen when calling to\nefx_ef10_try_update_nic_stats_vf.\n\nWhen releasing a DMA coherent buffer, sometimes, I don't know in what\nspecific circumstances, it has to unmap memory with vunmap. It is\ndisallowed to do that in IRQ context or with BH disabled. Otherwise, we\nhit this line in vunmap, causing the crash:\n BUG_ON(in_interrupt());\n\nThis patch reenables BH to release the buffer.\n\nLog messages when the bug is hit:\n kernel BUG at mm/vmalloc.c:2727!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 6 PID: 1462 Comm: NetworkManager Kdump: loaded Tainted: G I --------- --- 5.14.0-119.el9.x86_64 #1\n Hardware name: Dell Inc. PowerEdge R740/06WXJT, BIOS 2.8.2 08/27/2020\n RIP: 0010:vunmap+0x2e/0x30\n ...skip...\n Call Trace:\n __iommu_dma_free+0x96/0x100\n efx_nic_free_buffer+0x2b/0x40 [sfc]\n efx_ef10_try_update_nic_stats_vf+0x14a/0x1c0 [sfc]\n efx_ef10_update_stats_vf+0x18/0x40 [sfc]\n efx_start_all+0x15e/0x1d0 [sfc]\n efx_net_open+0x5a/0xe0 [sfc]\n __dev_open+0xe7/0x1a0\n __dev_change_flags+0x1d7/0x240\n dev_change_flags+0x21/0x60\n ...skip..." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/sfc/ef10.c" ], "versions": [ { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "d9840212a9c00507347c703f4fdeda16400407e0", "status": "affected", "versionType": "git" }, { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "b9072305270579a9d6afc9b926166231e5b1a7c8", "status": "affected", "versionType": "git" }, { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "82bcb730f856086f033e6c04082eb4503d4c2fa4", "status": "affected", "versionType": "git" }, { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "da346adcf5573fd8663cabfdfe8371009629a906", "status": "affected", "versionType": "git" }, { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "b82e4ad58a7fb72456503958a93060f87896e629", "status": "affected", "versionType": "git" }, { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "68e5f32f0de9594629ff9e599294d9801c6187de", "status": "affected", "versionType": "git" }, { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "16662524ec5da801fb78a1afcaf6e782f1cf103a", "status": "affected", "versionType": "git" }, { "version": "d778819609a27efd5358da8151a0ad3507243e19", "lessThan": "ada74c5539eba06cf8b47d068f92e0b3963a9a6e", "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/net/ethernet/sfc/ef10.c" ], "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.324", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.289", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.253", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.207", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.132", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.56", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.13", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "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": "4.2", "versionEndExcluding": "4.9.324" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "4.14.289" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "4.19.253" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.4.207" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.10.132" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.15.56" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.18.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d9840212a9c00507347c703f4fdeda16400407e0" }, { "url": "https://git.kernel.org/stable/c/b9072305270579a9d6afc9b926166231e5b1a7c8" }, { "url": "https://git.kernel.org/stable/c/82bcb730f856086f033e6c04082eb4503d4c2fa4" }, { "url": "https://git.kernel.org/stable/c/da346adcf5573fd8663cabfdfe8371009629a906" }, { "url": "https://git.kernel.org/stable/c/b82e4ad58a7fb72456503958a93060f87896e629" }, { "url": "https://git.kernel.org/stable/c/68e5f32f0de9594629ff9e599294d9801c6187de" }, { "url": "https://git.kernel.org/stable/c/16662524ec5da801fb78a1afcaf6e782f1cf103a" }, { "url": "https://git.kernel.org/stable/c/ada74c5539eba06cf8b47d068f92e0b3963a9a6e" } ], "title": "sfc: fix kernel panic when creating VF", "x_generator": { "engine": "bippy-1.2.0" } } } }