CVE-2022-49304
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drivers: tty: serial: Fix deadlock in sa1100_set_termios()
In the Linux kernel, the following vulnerability has been resolved: drivers: tty: serial: Fix deadlock in sa1100_set_termios() There is a deadlock in sa1100_set_termios(), which is shown below: (Thread 1) | (Thread 2) | sa1100_enable_ms() sa1100_set_termios() | mod_timer() spin_lock_irqsave() //(1) | (wait a time) ... | sa1100_timeout() del_timer_sync() | spin_lock_irqsave() //(2) (wait timer to stop) | ... We hold sport->port.lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need sport->port.lock in position (2) of thread 2. As a result, sa1100_set_termios() will block forever. This patch moves del_timer_sync() before spin_lock_irqsave() in order to prevent the deadlock.
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) |
|---|---|---|---|---|---|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 0976808d0d171ec837d4bd3e9f4ad4a00ab703b8 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 85e20f8bd31a46d8c60103d0274a8ebe8f47f2b2 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 920f0ae7a129ffee98a106e3bbdfd61a2a59e939 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 09a5958a2452ad22d0cb638711ef34ea1863a829 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 6e2273eefab54a521d9c59efb6e1114e742bdf41 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 2cbfc38df580bff5b2fe19f21c1a7520efcc4b3b | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 553213432ef0c295becdc08c0207d2094468f673 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 34d91e555e5582cffdbcbb75517bc9217866823e | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 62b2caef400c1738b6d22f636c628d9f85cd4c4c | 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) |
|---|---|---|---|---|---|
| 2.6.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.12 | Unavailable | None listed |
| 4.9.318 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.283 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.247 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.198 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.122 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.47 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.17.15 | unaffected | semver | Unavailable | 5.17.* | None listed |
| 5.18.4 | unaffected | semver | Unavailable | 5.18.* | None listed |
| 5.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |