CVE-2023-53051

Summary

In the Linux kernel, the following vulnerability has been resolved:

dm crypt: add cond_resched() to dmcrypt_write()

The loop in dmcrypt_write may be running for unbounded amount of time, thus we need cond_resched() in it.

This commit fixes the following warning:

[ 3391.153255][ C12] watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [dmcrypt_write/2:2897] … [ 3391.387210][ C12] Call trace: [ 3391.390338][ C12] blk_attempt_bio_merge.part.6+0x38/0x158 [ 3391.395970][ C12] blk_attempt_plug_merge+0xc0/0x1b0 [ 3391.401085][ C12] blk_mq_submit_bio+0x398/0x550 [ 3391.405856][ C12] submit_bio_noacct+0x308/0x380 [ 3391.410630][ C12] dmcrypt_write+0x1e4/0x208 [dm_crypt] [ 3391.416005][ C12] kthread+0x130/0x138 [ 3391.419911][ C12] ret_from_fork+0x10/0x18

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < e87cd83f70504f1cd2e428966f353c007d6d2d7faffected
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6affected
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1affected
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 66ff37993dd7e9954b6446237fe2453b380ce40daffected
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < eb485b7404a281d974bd445ddc5b0b8d5958f371affected
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < f0eb61b493dbbc32529fbd0d2e945b71b0e47306affected
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 2c743db1193bf0e76c73d71ede08bd9b96e6c31daffected
LinuxLinuxdc2676210c425ee8e5cb1bec5bc84d004ddf4179 < fb294b1c0ba982144ca467a75e7d01ff26304e2baffected
LinuxLinux4.0affected
LinuxLinux0 < 4.0unaffected
LinuxLinux4.14.312 <= 4.14.*unaffected
LinuxLinux4.19.280 <= 4.19.*unaffected
LinuxLinux5.4.240 <= 5.4.*unaffected
LinuxLinux5.10.177 <= 5.10.*unaffected
LinuxLinux5.15.105 <= 5.15.*unaffected
LinuxLinux6.1.22 <= 6.1.*unaffected
LinuxLinux6.2.9 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

References