{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2024-35854","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-17T13:50:33.106Z","datePublished":"2024-05-17T14:47:30.775Z","dateUpdated":"2026-05-11T20:12:32.513Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T20:12:32.513Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash\n\nThe rehash delayed work migrates filters from one region to another\naccording to the number of available credits.\n\nThe migrated from region is destroyed at the end of the work if the\nnumber of credits is non-negative as the assumption is that this is\nindicative of migration being complete. This assumption is incorrect as\na non-negative number of credits can also be the result of a failed\nmigration.\n\nThe destruction of a region that still has filters referencing it can\nresult in a use-after-free [1].\n\nFix by not destroying the region if migration failed.\n\n[1]\nBUG: KASAN: slab-use-after-free in mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230\nRead of size 8 at addr ffff8881735319e8 by task kworker/0:31/3858\n\nCPU: 0 PID: 3858 Comm: kworker/0:31 Tainted: G        W          6.9.0-rc2-custom-00782-gf2275c2157d8 #5\nHardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019\nWorkqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work\nCall Trace:\n <TASK>\n dump_stack_lvl+0xc6/0x120\n print_report+0xce/0x670\n kasan_report+0xd7/0x110\n mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230\n mlxsw_sp_acl_ctcam_entry_del+0x2e/0x70\n mlxsw_sp_acl_atcam_entry_del+0x81/0x210\n mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3cd/0xb50\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\nAllocated by task 174:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x8f/0xa0\n __kmalloc+0x19c/0x360\n mlxsw_sp_acl_tcam_region_create+0xdf/0x9c0\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x954/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\n\nFreed by task 7:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x60\n poison_slab_object+0x102/0x170\n __kasan_slab_free+0x14/0x30\n kfree+0xc1/0x290\n mlxsw_sp_acl_tcam_region_destroy+0x272/0x310\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x731/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c"],"versions":[{"version":"c9c9af91f1d9a636aecc55302c792538e549a430","lessThan":"e118e7ea24d1392878ef85926627c6bc640c4388","status":"affected","versionType":"git"},{"version":"c9c9af91f1d9a636aecc55302c792538e549a430","lessThan":"a429a912d6c779807f4d72a6cc0a1efaaa3613e1","status":"affected","versionType":"git"},{"version":"c9c9af91f1d9a636aecc55302c792538e549a430","lessThan":"4c89642ca47fb620914780c7c51d8d1248201121","status":"affected","versionType":"git"},{"version":"c9c9af91f1d9a636aecc55302c792538e549a430","lessThan":"813e2ab753a8f8c243a39ede20c2e0adc15f3887","status":"affected","versionType":"git"},{"version":"c9c9af91f1d9a636aecc55302c792538e549a430","lessThan":"311eeaa7b9e26aba5b3d57b09859f07d8e9fc049","status":"affected","versionType":"git"},{"version":"c9c9af91f1d9a636aecc55302c792538e549a430","lessThan":"a02687044e124f8ccb427cd3632124a4e1a7d7c1","status":"affected","versionType":"git"},{"version":"c9c9af91f1d9a636aecc55302c792538e549a430","lessThan":"54225988889931467a9b55fdbef534079b665519","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/mellanox/mlxsw/spectrum_acl_tcam.c"],"versions":[{"version":"5.1","status":"affected"},{"version":"0","lessThan":"5.1","status":"unaffected","versionType":"semver"},{"version":"5.4.275","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.216","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.158","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.90","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.30","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.8.9","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":"5.1","versionEndExcluding":"5.4.275"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.10.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.15.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.1.90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.6.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.8.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e118e7ea24d1392878ef85926627c6bc640c4388"},{"url":"https://git.kernel.org/stable/c/a429a912d6c779807f4d72a6cc0a1efaaa3613e1"},{"url":"https://git.kernel.org/stable/c/4c89642ca47fb620914780c7c51d8d1248201121"},{"url":"https://git.kernel.org/stable/c/813e2ab753a8f8c243a39ede20c2e0adc15f3887"},{"url":"https://git.kernel.org/stable/c/311eeaa7b9e26aba5b3d57b09859f07d8e9fc049"},{"url":"https://git.kernel.org/stable/c/a02687044e124f8ccb427cd3632124a4e1a7d7c1"},{"url":"https://git.kernel.org/stable/c/54225988889931467a9b55fdbef534079b665519"}],"title":"mlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-416","lang":"en","description":"CWE-416 Use After Free"}]}],"affected":[{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"c9c9af91f1d9","status":"affected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.1","status":"affected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"0","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.4.275","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.10.216","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.15.158","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"6.1.90","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"6.6.30","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"6.8.9","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"6.9","status":"unaffected"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-05-17T16:58:28.959142Z","id":"CVE-2024-35854","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-01-16T21:17:40.149Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T03:21:47.699Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/e118e7ea24d1392878ef85926627c6bc640c4388","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/a429a912d6c779807f4d72a6cc0a1efaaa3613e1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/4c89642ca47fb620914780c7c51d8d1248201121","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/813e2ab753a8f8c243a39ede20c2e0adc15f3887","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/311eeaa7b9e26aba5b3d57b09859f07d8e9fc049","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/a02687044e124f8ccb427cd3632124a4e1a7d7c1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/54225988889931467a9b55fdbef534079b665519","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","tags":["x_transferred"]}]}]},"dataVersion":"5.2"}