{"api_version":"1","generated_at":"2026-08-22T19:23:41+00:00","cve":"CVE-2023-53315","urls":{"html":"https://cve.report/CVE-2023-53315","api":"https://cve.report/api/cve/CVE-2023-53315.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-53315","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-53315"},"summary":{"title":"wifi: ath11k: Fix SKB corruption in REO destination ring","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Fix SKB corruption in REO destination ring\n\nWhile running traffics for a long time, randomly an RX descriptor\nfilled with value \"0\" from REO destination ring is received.\nThis descriptor which is invalid causes the wrong SKB (SKB stored in\nthe IDR lookup with buffer id \"0\") to be fetched which in turn\ncauses SKB memory corruption issue and the same leads to crash\nafter some time.\n\nChanged the start id for idr allocation to \"1\" and the buffer id \"0\"\nis reserved for error validation. Introduced Sanity check to validate\nthe descriptor, before processing the SKB.\n\nCrash Signature :\n\nUnable to handle kernel paging request at virtual address 3f004900\nPC points to \"b15_dma_inv_range+0x30/0x50\"\nLR points to \"dma_cache_maint_page+0x8c/0x128\".\nThe Backtrace obtained is as follows:\n[<8031716c>] (b15_dma_inv_range) from [<80313a4c>] (dma_cache_maint_page+0x8c/0x128)\n[<80313a4c>] (dma_cache_maint_page) from [<80313b90>] (__dma_page_dev_to_cpu+0x28/0xcc)\n[<80313b90>] (__dma_page_dev_to_cpu) from [<7fb5dd68>] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k])\n[<7fb5dd68>] (ath11k_dp_process_rx [ath11k]) from [<7fb53c20>] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k])\n[<7fb53c20>] (ath11k_dp_service_srng [ath11k]) from [<7f67bba4>] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci])\n[<7f67bba4>] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [<807d5cf4>] (__napi_poll+0x28/0xb8)\n[<807d5cf4>] (__napi_poll) from [<807d5f28>] (net_rx_action+0xf0/0x280)\n[<807d5f28>] (net_rx_action) from [<80302148>] (__do_softirq+0xd0/0x280)\n[<80302148>] (__do_softirq) from [<80320408>] (irq_exit+0x74/0xd4)\n[<80320408>] (irq_exit) from [<803638a4>] (__handle_domain_irq+0x90/0xb4)\n[<803638a4>] (__handle_domain_irq) from [<805bedec>] (gic_handle_irq+0x58/0x90)\n[<805bedec>] (gic_handle_irq) from [<80301a78>] (__irq_svc+0x58/0x8c)\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1","state":"PUBLISHED","assigner":"Linux","published_at":"2025-09-16 17:15:37","updated_at":"2026-08-04 10:19:01"},"problem_types":["CWE-401","CWE-401 CWE-401 Missing Release of Memory after Effective Lifetime"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"ADP","type":"DECLARED","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/67459491f78146bcf7d93596e5b709d063dff5d8","name":"https://git.kernel.org/stable/c/67459491f78146bcf7d93596e5b709d063dff5d8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/068fd06148fbf0af95bb08dc77cff34ee679fdbc","name":"https://git.kernel.org/stable/c/068fd06148fbf0af95bb08dc77cff34ee679fdbc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f9fff67d2d7ca6fa8066132003a3deef654c55b1","name":"https://git.kernel.org/stable/c/f9fff67d2d7ca6fa8066132003a3deef654c55b1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3d3f8fe01a01d94a17fe1ae0d2e894049a972717","name":"https://git.kernel.org/stable/c/3d3f8fe01a01d94a17fe1ae0d2e894049a972717","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/866921dc06b94df91acfcf9359b57da943ed99b3","name":"https://git.kernel.org/stable/c/866921dc06b94df91acfcf9359b57da943ed99b3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-53315","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53315","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 866921dc06b94df91acfcf9359b57da943ed99b3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 3d3f8fe01a01d94a17fe1ae0d2e894049a972717 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 068fd06148fbf0af95bb08dc77cff34ee679fdbc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 67459491f78146bcf7d93596e5b709d063dff5d8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d f9fff67d2d7ca6fa8066132003a3deef654c55b1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.181 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.113 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.30 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3.4 6.3.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"53315","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2023-53315","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-01-14T18:25:50.670949Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","description":"CWE-401 Missing Release of Memory after Effective Lifetime","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-01-14T18:32:57.685Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath11k/dp_rx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"866921dc06b94df91acfcf9359b57da943ed99b3","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"3d3f8fe01a01d94a17fe1ae0d2e894049a972717","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"068fd06148fbf0af95bb08dc77cff34ee679fdbc","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"67459491f78146bcf7d93596e5b709d063dff5d8","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"f9fff67d2d7ca6fa8066132003a3deef654c55b1","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath11k/dp_rx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.6"},{"lessThan":"5.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.181","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.113","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.30","versionType":"semver"},{"lessThanOrEqual":"6.3.*","status":"unaffected","version":"6.3.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.181","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.113","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.30","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.3.4","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.4","versionStartIncluding":"5.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Fix SKB corruption in REO destination ring\n\nWhile running traffics for a long time, randomly an RX descriptor\nfilled with value \"0\" from REO destination ring is received.\nThis descriptor which is invalid causes the wrong SKB (SKB stored in\nthe IDR lookup with buffer id \"0\") to be fetched which in turn\ncauses SKB memory corruption issue and the same leads to crash\nafter some time.\n\nChanged the start id for idr allocation to \"1\" and the buffer id \"0\"\nis reserved for error validation. Introduced Sanity check to validate\nthe descriptor, before processing the SKB.\n\nCrash Signature :\n\nUnable to handle kernel paging request at virtual address 3f004900\nPC points to \"b15_dma_inv_range+0x30/0x50\"\nLR points to \"dma_cache_maint_page+0x8c/0x128\".\nThe Backtrace obtained is as follows:\n[<8031716c>] (b15_dma_inv_range) from [<80313a4c>] (dma_cache_maint_page+0x8c/0x128)\n[<80313a4c>] (dma_cache_maint_page) from [<80313b90>] (__dma_page_dev_to_cpu+0x28/0xcc)\n[<80313b90>] (__dma_page_dev_to_cpu) from [<7fb5dd68>] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k])\n[<7fb5dd68>] (ath11k_dp_process_rx [ath11k]) from [<7fb53c20>] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k])\n[<7fb53c20>] (ath11k_dp_service_srng [ath11k]) from [<7f67bba4>] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci])\n[<7f67bba4>] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [<807d5cf4>] (__napi_poll+0x28/0xb8)\n[<807d5cf4>] (__napi_poll) from [<807d5f28>] (net_rx_action+0xf0/0x280)\n[<807d5f28>] (net_rx_action) from [<80302148>] (__do_softirq+0xd0/0x280)\n[<80302148>] (__do_softirq) from [<80320408>] (irq_exit+0x74/0xd4)\n[<80320408>] (irq_exit) from [<803638a4>] (__handle_domain_irq+0x90/0xb4)\n[<803638a4>] (__handle_domain_irq) from [<805bedec>] (gic_handle_irq+0x58/0x90)\n[<805bedec>] (gic_handle_irq) from [<80301a78>] (__irq_svc+0x58/0x8c)\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1"}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:14:08.780Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/866921dc06b94df91acfcf9359b57da943ed99b3"},{"url":"https://git.kernel.org/stable/c/3d3f8fe01a01d94a17fe1ae0d2e894049a972717"},{"url":"https://git.kernel.org/stable/c/068fd06148fbf0af95bb08dc77cff34ee679fdbc"},{"url":"https://git.kernel.org/stable/c/67459491f78146bcf7d93596e5b709d063dff5d8"},{"url":"https://git.kernel.org/stable/c/f9fff67d2d7ca6fa8066132003a3deef654c55b1"}],"title":"wifi: ath11k: Fix SKB corruption in REO destination ring","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2023-53315","datePublished":"2025-09-16T16:11:52.242Z","dateReserved":"2025-09-16T16:08:59.562Z","dateUpdated":"2026-08-04T09:14:08.780Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-09-16 17:15:37","lastModifiedDate":"2026-08-04 10:19:01","problem_types":["CWE-401","CWE-401 CWE-401 Missing Release of Memory after Effective Lifetime"],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-01-14T18:25:50.670949Z","id":"CVE-2023-53315","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.10.181","matchCriteriaId":"F1F238F8-F08D-489D-9C86-1B74CBB71CFE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.113","matchCriteriaId":"F3D5E1B5-AB9D-4ECC-8F11-F3E1BF761E27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.30","matchCriteriaId":"E9430E62-03EA-42E6-9E5E-BD1D5124D107"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.3.4","matchCriteriaId":"26C54BF0-3EED-46D4-92A7-5F07F658B49B"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"53315","Ordinal":"1","Title":"wifi: ath11k: Fix SKB corruption in REO destination ring","CVE":"CVE-2023-53315","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"53315","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Fix SKB corruption in REO destination ring\n\nWhile running traffics for a long time, randomly an RX descriptor\nfilled with value \"0\" from REO destination ring is received.\nThis descriptor which is invalid causes the wrong SKB (SKB stored in\nthe IDR lookup with buffer id \"0\") to be fetched which in turn\ncauses SKB memory corruption issue and the same leads to crash\nafter some time.\n\nChanged the start id for idr allocation to \"1\" and the buffer id \"0\"\nis reserved for error validation. Introduced Sanity check to validate\nthe descriptor, before processing the SKB.\n\nCrash Signature :\n\nUnable to handle kernel paging request at virtual address 3f004900\nPC points to \"b15_dma_inv_range+0x30/0x50\"\nLR points to \"dma_cache_maint_page+0x8c/0x128\".\nThe Backtrace obtained is as follows:\n[<8031716c>] (b15_dma_inv_range) from [<80313a4c>] (dma_cache_maint_page+0x8c/0x128)\n[<80313a4c>] (dma_cache_maint_page) from [<80313b90>] (__dma_page_dev_to_cpu+0x28/0xcc)\n[<80313b90>] (__dma_page_dev_to_cpu) from [<7fb5dd68>] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k])\n[<7fb5dd68>] (ath11k_dp_process_rx [ath11k]) from [<7fb53c20>] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k])\n[<7fb53c20>] (ath11k_dp_service_srng [ath11k]) from [<7f67bba4>] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci])\n[<7f67bba4>] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [<807d5cf4>] (__napi_poll+0x28/0xb8)\n[<807d5cf4>] (__napi_poll) from [<807d5f28>] (net_rx_action+0xf0/0x280)\n[<807d5f28>] (net_rx_action) from [<80302148>] (__do_softirq+0xd0/0x280)\n[<80302148>] (__do_softirq) from [<80320408>] (irq_exit+0x74/0xd4)\n[<80320408>] (irq_exit) from [<803638a4>] (__handle_domain_irq+0x90/0xb4)\n[<803638a4>] (__handle_domain_irq) from [<805bedec>] (gic_handle_irq+0x58/0x90)\n[<805bedec>] (gic_handle_irq) from [<80301a78>] (__irq_svc+0x58/0x8c)\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1","Type":"Description","Title":"wifi: ath11k: Fix SKB corruption in REO destination ring"}]}}}