{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-48726","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-06-20T11:09:39.051Z","datePublished":"2024-06-20T11:13:15.957Z","dateUpdated":"2025-05-04T08:21:49.962Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:21:49.962Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/ucma: Protect mc during concurrent multicast leaves\n\nPartially revert the commit mentioned in the Fixes line to make sure that\nallocation and erasing multicast struct are locked.\n\n  BUG: KASAN: use-after-free in ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\n  BUG: KASAN: use-after-free in ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\n  Read of size 8 at addr ffff88801bb74b00 by task syz-executor.1/25529\n  CPU: 0 PID: 25529 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0\n  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\n  Call Trace:\n   __dump_stack lib/dump_stack.c:88 [inline]\n   dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n   print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247\n   __kasan_report mm/kasan/report.c:433 [inline]\n   kasan_report.cold+0x83/0xdf mm/kasan/report.c:450\n   ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\n   ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\n   ucma_destroy_id+0x1e6/0x280 drivers/infiniband/core/ucma.c:614\n   ucma_write+0x25c/0x350 drivers/infiniband/core/ucma.c:1732\n   vfs_write+0x28e/0xae0 fs/read_write.c:588\n   ksys_write+0x1ee/0x250 fs/read_write.c:643\n   do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n   do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n   entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nCurrently the xarray search can touch a concurrently freeing mc as the\nxa_for_each() is not surrounded by any lock. Rather than hold the lock for\na full scan hold it only for the effected items, which is usually an empty\nlist."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/core/ucma.c"],"versions":[{"version":"95fe51096b7adf1d1e7315c49c75e2f75f162584","lessThan":"75c610212b9f1756b9384911d3a2c347eee8031c","status":"affected","versionType":"git"},{"version":"95fe51096b7adf1d1e7315c49c75e2f75f162584","lessThan":"2923948ffe0835f7114e948b35bcc42bc9b3baa1","status":"affected","versionType":"git"},{"version":"95fe51096b7adf1d1e7315c49c75e2f75f162584","lessThan":"ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0a","status":"affected","versionType":"git"},{"version":"95fe51096b7adf1d1e7315c49c75e2f75f162584","lessThan":"36e8169ec973359f671f9ec7213547059cae972e","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/infiniband/core/ucma.c"],"versions":[{"version":"5.10","status":"affected"},{"version":"0","lessThan":"5.10","status":"unaffected","versionType":"semver"},{"version":"5.10.99","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.22","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16.8","lessThanOrEqual":"5.16.*","status":"unaffected","versionType":"semver"},{"version":"5.17","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":"5.10","versionEndExcluding":"5.10.99"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.22"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.16.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/75c610212b9f1756b9384911d3a2c347eee8031c"},{"url":"https://git.kernel.org/stable/c/2923948ffe0835f7114e948b35bcc42bc9b3baa1"},{"url":"https://git.kernel.org/stable/c/ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0a"},{"url":"https://git.kernel.org/stable/c/36e8169ec973359f671f9ec7213547059cae972e"}],"title":"RDMA/ucma: Protect mc during concurrent multicast leaves","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T15:24:59.977Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/75c610212b9f1756b9384911d3a2c347eee8031c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/2923948ffe0835f7114e948b35bcc42bc9b3baa1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/36e8169ec973359f671f9ec7213547059cae972e","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2022-48726","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T17:11:03.672761Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:34:49.191Z"}}]}}