{"id":"CVE-2024-56553","state":"PUBLISHED","title":"binder: fix memleak of proc->delivered_freeze","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix memleak of proc->delivered_freeze\n\nIf a freeze notification is cleared with BC_CLEAR_FREEZE_NOTIFICATION\nbefore calling binder_freeze_notification_done(), then it is detached\nfrom its reference (e.g. ref->freeze) but the work remains queued in\nproc->delivered_freeze. This leads to a memory leak when the process\nexits as any pending entries in proc->delivered_freeze are not freed:\n\n  unreferenced object 0xffff38e8cfa36180 (size 64):\n    comm \"binder-util\", pid 655, jiffies 4294936641\n    hex dump (first 32 bytes):\n      b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff  .....8.......8..\n      0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00  ........<.K.....\n    backtrace (crc 95983b32):\n      [<000000000d0582cf>] kmemleak_alloc+0x34/0x40\n      [<000000009c99a513>] __kmalloc_cache_noprof+0x208/0x280\n      [<00000000313b1704>] binder_thread_write+0xdec/0x439c\n      [<000000000cbd33bb>] binder_ioctl+0x1b68/0x22cc\n      [<000000002bbedeeb>] __arm64_sys_ioctl+0x124/0x190\n      [<00000000b439adee>] invoke_syscall+0x6c/0x254\n      [<00000000173558fc>] el0_svc_common.constprop.0+0xac/0x230\n      [<0000000084f72311>] do_el0_svc+0x40/0x58\n      [<000000008b872457>] el0_svc+0x38/0x78\n      [<00000000ee778653>] el0t_64_sync_handler+0x120/0x12c\n      [<00000000a8ec61bf>] el0t_64_sync+0x190/0x194\n\nThis patch fixes the leak by ensuring that any pending entries in\nproc->delivered_freeze are freed during binder_deferred_release().","publishedAt":"2024-12-27T14:22:54.859Z","updatedAt":"2026-05-11T20:54:34.799Z","severity":{"score":3.3,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d579b04a52a183db47dfcb7a44304d7747d551e1","status":"affected","lessThan":"b8b77712142fb146fe18d2253bc8a798d522e427","versionType":"git"},{"version":"d579b04a52a183db47dfcb7a44304d7747d551e1","status":"affected","lessThan":"1db76ec2b4b206ff943e292a0b55e68ff3443598","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.4","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]}],"references":["https://git.kernel.org/stable/c/b8b77712142fb146fe18d2253bc8a798d522e427","https://git.kernel.org/stable/c/1db76ec2b4b206ff943e292a0b55e68ff3443598"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/56xxx/CVE-2024-56553.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56553","state":"PUBLISHED","datePublished":"2024-12-27T14:22:54.859Z","dateUpdated":"2026-05-11T20:54:34.799Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-27T14:03:05.990Z"},"containers":{"cna":{"title":"binder: fix memleak of proc->delivered_freeze","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix memleak of proc->delivered_freeze\n\nIf a freeze notification is cleared with BC_CLEAR_FREEZE_NOTIFICATION\nbefore calling binder_freeze_notification_done(), then it is detached\nfrom its reference (e.g. ref->freeze) but the work remains queued in\nproc->delivered_freeze. This leads to a memory leak when the process\nexits as any pending entries in proc->delivered_freeze are not freed:\n\n  unreferenced object 0xffff38e8cfa36180 (size 64):\n    comm \"binder-util\", pid 655, jiffies 4294936641\n    hex dump (first 32 bytes):\n      b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff  .....8.......8..\n      0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00  ........<.K.....\n    backtrace (crc 95983b32):\n      [<000000000d0582cf>] kmemleak_alloc+0x34/0x40\n      [<000000009c99a513>] __kmalloc_cache_noprof+0x208/0x280\n      [<00000000313b1704>] binder_thread_write+0xdec/0x439c\n      [<000000000cbd33bb>] binder_ioctl+0x1b68/0x22cc\n      [<000000002bbedeeb>] __arm64_sys_ioctl+0x124/0x190\n      [<00000000b439adee>] invoke_syscall+0x6c/0x254\n      [<00000000173558fc>] el0_svc_common.constprop.0+0xac/0x230\n      [<0000000084f72311>] do_el0_svc+0x40/0x58\n      [<000000008b872457>] el0_svc+0x38/0x78\n      [<00000000ee778653>] el0t_64_sync_handler+0x120/0x12c\n      [<00000000a8ec61bf>] el0t_64_sync+0x190/0x194\n\nThis patch fixes the leak by ensuring that any pending entries in\nproc->delivered_freeze are freed during binder_deferred_release()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d579b04a52a183db47dfcb7a44304d7747d551e1","status":"affected","lessThan":"b8b77712142fb146fe18d2253bc8a798d522e427","versionType":"git"},{"version":"d579b04a52a183db47dfcb7a44304d7747d551e1","status":"affected","lessThan":"1db76ec2b4b206ff943e292a0b55e68ff3443598","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.4","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b8b77712142fb146fe18d2253bc8a798d522e427"},{"url":"https://git.kernel.org/stable/c/1db76ec2b4b206ff943e292a0b55e68ff3443598"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:54:34.799Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":3.3,"attackVector":"LOCAL","baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-56553","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-04-17T20:10:48.416039Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","lang":"en","type":"CWE","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-17T20:15:53.198Z"}}]}}}