CVE-2023-52752
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
smb: client: fix use-after-free bug in cifs_debug_data_proc_show()
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() Skip SMB sessions that are being teared down (e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show() to avoid use-after-free in @ses. This fixes the following GPF when reading from /proc/fs/cifs/DebugData while mounting and umounting [ 816.251274] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI ... [ 816.260138] Call Trace: [ 816.260329] <TASK> [ 816.260499] ? die_addr+0x36/0x90 [ 816.260762] ? exc_general_protection+0x1b3/0x410 [ 816.261126] ? asm_exc_general_protection+0x26/0x30 [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs] [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs] [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs] [ 816.262689] ? seq_read_iter+0x379/0x470 [ 816.262995] seq_read_iter+0x118/0x470 [ 816.263291] proc_reg_read_iter+0x53/0x90 [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f [ 816.263945] vfs_read+0x201/0x350 [ 816.264211] ksys_read+0x75/0x100 [ 816.264472] do_syscall_64+0x3f/0x90 [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 816.265135] RIP: 0033:0x7fd5e669d381
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7f48558e6489d032b1584b0cc9ac4bb11072c034 | affected | git | 2abdf136784b7edaec7ffe0f4b461b63f9c4c4de | Unavailable | None listed |
| 7f48558e6489d032b1584b0cc9ac4bb11072c034 | affected | git | 336a066990bb3962c46daf574ace596bda9303ce | Unavailable | None listed |
| 7f48558e6489d032b1584b0cc9ac4bb11072c034 | affected | git | 558817597d5fbd7af31f891b67b0fd20f0d047b7 | Unavailable | None listed |
| 7f48558e6489d032b1584b0cc9ac4bb11072c034 | affected | git | 89929ea46f9cc11ba66d2c64713aa5d5dc723b09 | Unavailable | None listed |
| 7f48558e6489d032b1584b0cc9ac4bb11072c034 | affected | git | 0ab6f842452ce2cae04209d4671ac6289d0aef8a | Unavailable | None listed |
| 7f48558e6489d032b1584b0cc9ac4bb11072c034 | affected | git | d328c09ee9f15ee5a26431f5aad7c9239fa85e62 | Unavailable | None listed |
| a67172a013953664b1dad03c648200c70b90506c | affected | git | Unavailable | Unavailable | None listed |
| 3.12.48 | affected | semver | 3.13 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.13 | Unavailable | None listed |
| 5.10.237 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.181 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.64 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.5.13 | unaffected | semver | Unavailable | 6.5.* | None listed |
| 6.6.3 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7 | unaffected | original_commit_for_fix | Unavailable | * | None listed |