{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-50151","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-10-21T19:36:19.959Z","datePublished":"2024-11-07T09:31:27.672Z","dateUpdated":"2025-11-03T22:26:10.332Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:47:21.596Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix OOBs when building SMB2_IOCTL request\n\nWhen using encryption, either enforced by the server or when using\n'seal' mount option, the client will squash all compound request buffers\ndown for encryption into a single iov in smb2_set_next_command().\n\nSMB2_ioctl_init() allocates a small buffer (448 bytes) to hold the\nSMB2_IOCTL request in the first iov, and if the user passes an input\nbuffer that is greater than 328 bytes, smb2_set_next_command() will\nend up writing off the end of @rqst->iov[0].iov_base as shown below:\n\n  mount.cifs //srv/share /mnt -o ...,seal\n  ln -s $(perl -e \"print('a')for 1..1024\") /mnt/link\n\n  BUG: KASAN: slab-out-of-bounds in\n  smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n  Write of size 4116 at addr ffff8881148fcab8 by task ln/859\n\n  CPU: 1 UID: 0 PID: 859 Comm: ln Not tainted 6.12.0-rc3 #1\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n  1.16.3-2.fc40 04/01/2014\n  Call Trace:\n   <TASK>\n   dump_stack_lvl+0x5d/0x80\n   ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n   print_report+0x156/0x4d9\n   ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n   ? __virt_addr_valid+0x145/0x310\n   ? __phys_addr+0x46/0x90\n   ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n   kasan_report+0xda/0x110\n   ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n   kasan_check_range+0x10f/0x1f0\n   __asan_memcpy+0x3c/0x60\n   smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n   smb2_compound_op+0x238c/0x3840 [cifs]\n   ? kasan_save_track+0x14/0x30\n   ? kasan_save_free_info+0x3b/0x70\n   ? vfs_symlink+0x1a1/0x2c0\n   ? do_symlinkat+0x108/0x1c0\n   ? __pfx_smb2_compound_op+0x10/0x10 [cifs]\n   ? kmem_cache_free+0x118/0x3e0\n   ? cifs_get_writable_path+0xeb/0x1a0 [cifs]\n   smb2_get_reparse_inode+0x423/0x540 [cifs]\n   ? __pfx_smb2_get_reparse_inode+0x10/0x10 [cifs]\n   ? rcu_is_watching+0x20/0x50\n   ? __kmalloc_noprof+0x37c/0x480\n   ? smb2_create_reparse_symlink+0x257/0x490 [cifs]\n   ? smb2_create_reparse_symlink+0x38f/0x490 [cifs]\n   smb2_create_reparse_symlink+0x38f/0x490 [cifs]\n   ? __pfx_smb2_create_reparse_symlink+0x10/0x10 [cifs]\n   ? find_held_lock+0x8a/0xa0\n   ? hlock_class+0x32/0xb0\n   ? __build_path_from_dentry_optional_prefix+0x19d/0x2e0 [cifs]\n   cifs_symlink+0x24f/0x960 [cifs]\n   ? __pfx_make_vfsuid+0x10/0x10\n   ? __pfx_cifs_symlink+0x10/0x10 [cifs]\n   ? make_vfsgid+0x6b/0xc0\n   ? generic_permission+0x96/0x2d0\n   vfs_symlink+0x1a1/0x2c0\n   do_symlinkat+0x108/0x1c0\n   ? __pfx_do_symlinkat+0x10/0x10\n   ? strncpy_from_user+0xaa/0x160\n   __x64_sys_symlinkat+0xb9/0xf0\n   do_syscall_64+0xbb/0x1d0\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\n  RIP: 0033:0x7f08d75c13bb"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/smb2pdu.c"],"versions":[{"version":"e77fe73c7e38c36145825d84cfe385d400aba4fd","lessThan":"6f0516ef1290da24b85461ed08a0938af7415e49","status":"affected","versionType":"git"},{"version":"e77fe73c7e38c36145825d84cfe385d400aba4fd","lessThan":"ed31aba8ce93472d9e16f5cff844ae7c94e9601d","status":"affected","versionType":"git"},{"version":"e77fe73c7e38c36145825d84cfe385d400aba4fd","lessThan":"e07d05b7f5ad9a503d9cab0afde2ab867bb65470","status":"affected","versionType":"git"},{"version":"e77fe73c7e38c36145825d84cfe385d400aba4fd","lessThan":"2ef632bfb888d1a14f81c1703817951e0bec5531","status":"affected","versionType":"git"},{"version":"e77fe73c7e38c36145825d84cfe385d400aba4fd","lessThan":"b209c3a0bc3ac172265c7fa8309e5d00654f2510","status":"affected","versionType":"git"},{"version":"e77fe73c7e38c36145825d84cfe385d400aba4fd","lessThan":"fe92ddc1c32d4474e605e3a31a4afcd0e7d765ec","status":"affected","versionType":"git"},{"version":"e77fe73c7e38c36145825d84cfe385d400aba4fd","lessThan":"1ab60323c5201bef25f2a3dc0ccc404d9aca77f1","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/smb2pdu.c"],"versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","status":"unaffected","versionType":"semver"},{"version":"5.4.285","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.229","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.170","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.115","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.59","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.11.6","lessThanOrEqual":"6.11.*","status":"unaffected","versionType":"semver"},{"version":"6.12","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":"5.0","versionEndExcluding":"5.4.285"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.10.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.15.170"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.1.115"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.6.59"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.11.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/6f0516ef1290da24b85461ed08a0938af7415e49"},{"url":"https://git.kernel.org/stable/c/ed31aba8ce93472d9e16f5cff844ae7c94e9601d"},{"url":"https://git.kernel.org/stable/c/e07d05b7f5ad9a503d9cab0afde2ab867bb65470"},{"url":"https://git.kernel.org/stable/c/2ef632bfb888d1a14f81c1703817951e0bec5531"},{"url":"https://git.kernel.org/stable/c/b209c3a0bc3ac172265c7fa8309e5d00654f2510"},{"url":"https://git.kernel.org/stable/c/fe92ddc1c32d4474e605e3a31a4afcd0e7d765ec"},{"url":"https://git.kernel.org/stable/c/1ab60323c5201bef25f2a3dc0ccc404d9aca77f1"}],"title":"smb: client: fix OOBs when building SMB2_IOCTL request","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/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":{"id":"CVE-2024-50151","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-10-01T20:20:44.094146Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T20:27:13.291Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:26:10.332Z"}}]}}