| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix double free of TCP_Server_Info::hostname\n\nWhen shutting down the server in cifs_put_tcp_session(), cifsd thread\nmight be reconnecting to multiple DFS targets before it realizes it\nshould exit the loop, so @server->hostname can't be freed as long as\ncifsd thread isn't done. Otherwise the following can happen:\n\n RIP: 0010:__slab_free+0x223/0x3c0\n Code: 5e 41 5f c3 cc cc cc cc 4c 89 de 4c 89 cf 44 89 44 24 08 4c 89\n 1c 24 e8 fb cf 8e 00 44 8b 44 24 08 4c 8b 1c 24 e9 5f fe ff ff <0f>\n 0b 41 f7 45 08 00 0d 21 00 0f 85 2d ff ff ff e9 1f ff ff ff 80\n RSP: 0018:ffffb26180dbfd08 EFLAGS: 00010246\n RAX: ffff8ea34728e510 RBX: ffff8ea34728e500 RCX: 0000000000800068\n RDX: 0000000000800068 RSI: 0000000000000000 RDI: ffff8ea340042400\n RBP: ffffe112041ca380 R08: 0000000000000001 R09: 0000000000000000\n R10: 6170732e31303000 R11: 70726f632e786563 R12: ffff8ea34728e500\n R13: ffff8ea340042400 R14: ffff8ea34728e500 R15: 0000000000800068\n FS: 0000000000000000(0000) GS:ffff8ea66fd80000(0000)\n 000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007ffc25376080 CR3: 000000012a2ba001 CR4:\n PKRU: 55555554\n Call Trace:\n <TASK>\n ? show_trace_log_lvl+0x1c4/0x2df\n ? show_trace_log_lvl+0x1c4/0x2df\n ? __reconnect_target_unlocked+0x3e/0x160 [cifs]\n ? __die_body.cold+0x8/0xd\n ? die+0x2b/0x50\n ? do_trap+0xce/0x120\n ? __slab_free+0x223/0x3c0\n ? do_error_trap+0x65/0x80\n ? __slab_free+0x223/0x3c0\n ? exc_invalid_op+0x4e/0x70\n ? __slab_free+0x223/0x3c0\n ? asm_exc_invalid_op+0x16/0x20\n ? __slab_free+0x223/0x3c0\n ? extract_hostname+0x5c/0xa0 [cifs]\n ? extract_hostname+0x5c/0xa0 [cifs]\n ? __kmalloc+0x4b/0x140\n __reconnect_target_unlocked+0x3e/0x160 [cifs]\n reconnect_dfs_server+0x145/0x430 [cifs]\n cifs_handle_standard+0x1ad/0x1d0 [cifs]\n cifs_demultiplex_thread+0x592/0x730 [cifs]\n ? __pfx_cifs_demultiplex_thread+0x10/0x10 [cifs]\n kthread+0xdd/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x29/0x50\n </TASK>" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/smb/client/connect.c" |
| ], |
| "versions": [ |
| { |
| "version": "7be3248f313930ff3d3436d4e9ddbe9fccc1f541", |
| "lessThan": "1ea68070338518a1d31ce71e6abfe1b30001b27a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7be3248f313930ff3d3436d4e9ddbe9fccc1f541", |
| "lessThan": "a2be5f2ba34d0c6d5ef2624b24e3d852561fcd6a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7be3248f313930ff3d3436d4e9ddbe9fccc1f541", |
| "lessThan": "fa2f9906a7b333ba757a7dbae0713d8a5396186e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "49f933bb3016269dc50074eac5f6033d127644f1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1c35a216ef77db708178ca225d796271f2f60a7a", |
| "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/connect.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.16", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.16", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.74", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.11", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13", |
| "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": "5.16", |
| "versionEndExcluding": "6.6.74" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.16", |
| "versionEndExcluding": "6.12.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.16", |
| "versionEndExcluding": "6.13" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.14.19" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.15.3" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/1ea68070338518a1d31ce71e6abfe1b30001b27a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a2be5f2ba34d0c6d5ef2624b24e3d852561fcd6a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/fa2f9906a7b333ba757a7dbae0713d8a5396186e" |
| } |
| ], |
| "title": "smb: client: fix double free of TCP_Server_Info::hostname", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21673", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
