{"id":"CVE-2024-36925","state":"PUBLISHED","title":"swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nswiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y\n\nUsing restricted DMA pools (CONFIG_DMA_RESTRICTED_POOL=y) in conjunction\nwith dynamic SWIOTLB (CONFIG_SWIOTLB_DYNAMIC=y) leads to the following\ncrash when initialising the restricted pools at boot-time:\n\n  | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n  | Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n  | pc : rmem_swiotlb_device_init+0xfc/0x1ec\n  | lr : rmem_swiotlb_device_init+0xf0/0x1ec\n  | Call trace:\n  |  rmem_swiotlb_device_init+0xfc/0x1ec\n  |  of_reserved_mem_device_init_by_idx+0x18c/0x238\n  |  of_dma_configure_id+0x31c/0x33c\n  |  platform_dma_configure+0x34/0x80\n\nfaddr2line reveals that the crash is in the list validation code:\n\n  include/linux/list.h:83\n  include/linux/rculist.h:79\n  include/linux/rculist.h:106\n  kernel/dma/swiotlb.c:306\n  kernel/dma/swiotlb.c:1695\n\nbecause add_mem_pool() is trying to list_add_rcu() to a NULL\n'mem->pools'.\n\nFix the crash by initialising the 'mem->pools' list_head in\nrmem_swiotlb_device_init() before calling add_mem_pool().","publishedAt":"2024-05-30T15:29:19.111Z","updatedAt":"2026-05-11T20:17:07.889Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb","status":"affected","lessThan":"f2a6b3ed20f2dea4cb645abc6a73c4595662adca","versionType":"git"},{"version":"1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb","status":"affected","lessThan":"f62e0fefcdfe2c05ccb1aa80521a69524eea9c84","versionType":"git"},{"version":"1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb","status":"affected","lessThan":"75961ffb5cb3e5196f19cae7683f35cc88b50800","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/dma/swiotlb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.31","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.8.10","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/dma/swiotlb.c"]}],"references":["https://git.kernel.org/stable/c/f2a6b3ed20f2dea4cb645abc6a73c4595662adca","https://git.kernel.org/stable/c/f62e0fefcdfe2c05ccb1aa80521a69524eea9c84","https://git.kernel.org/stable/c/75961ffb5cb3e5196f19cae7683f35cc88b50800"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:30.303Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/36xxx/CVE-2024-36925.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-36925","state":"PUBLISHED","datePublished":"2024-05-30T15:29:19.111Z","dateUpdated":"2026-05-11T20:17:07.889Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-30T15:25:07.069Z"},"containers":{"cna":{"title":"swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nswiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y\n\nUsing restricted DMA pools (CONFIG_DMA_RESTRICTED_POOL=y) in conjunction\nwith dynamic SWIOTLB (CONFIG_SWIOTLB_DYNAMIC=y) leads to the following\ncrash when initialising the restricted pools at boot-time:\n\n  | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n  | Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n  | pc : rmem_swiotlb_device_init+0xfc/0x1ec\n  | lr : rmem_swiotlb_device_init+0xf0/0x1ec\n  | Call trace:\n  |  rmem_swiotlb_device_init+0xfc/0x1ec\n  |  of_reserved_mem_device_init_by_idx+0x18c/0x238\n  |  of_dma_configure_id+0x31c/0x33c\n  |  platform_dma_configure+0x34/0x80\n\nfaddr2line reveals that the crash is in the list validation code:\n\n  include/linux/list.h:83\n  include/linux/rculist.h:79\n  include/linux/rculist.h:106\n  kernel/dma/swiotlb.c:306\n  kernel/dma/swiotlb.c:1695\n\nbecause add_mem_pool() is trying to list_add_rcu() to a NULL\n'mem->pools'.\n\nFix the crash by initialising the 'mem->pools' list_head in\nrmem_swiotlb_device_init() before calling add_mem_pool()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb","status":"affected","lessThan":"f2a6b3ed20f2dea4cb645abc6a73c4595662adca","versionType":"git"},{"version":"1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb","status":"affected","lessThan":"f62e0fefcdfe2c05ccb1aa80521a69524eea9c84","versionType":"git"},{"version":"1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb","status":"affected","lessThan":"75961ffb5cb3e5196f19cae7683f35cc88b50800","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/dma/swiotlb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.31","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.8.10","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/dma/swiotlb.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f2a6b3ed20f2dea4cb645abc6a73c4595662adca"},{"url":"https://git.kernel.org/stable/c/f62e0fefcdfe2c05ccb1aa80521a69524eea9c84"},{"url":"https://git.kernel.org/stable/c/75961ffb5cb3e5196f19cae7683f35cc88b50800"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:17:07.889Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.31"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.8.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.9"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/f2a6b3ed20f2dea4cb645abc6a73c4595662adca","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/f62e0fefcdfe2c05ccb1aa80521a69524eea9c84","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/75961ffb5cb3e5196f19cae7683f35cc88b50800","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T03:43:49.842Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-36925","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T17:15:57.805221Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-11T17:34:59.873Z"}}]}}}