CVE-2024-26955

Summary

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

nilfs2: prevent kernel bug at submit_bh_wbc()

Fix a bug where nilfs_get_block() returns a successful status when searching and inserting the specified block both fail inconsistently. If this inconsistent behavior is not due to a previously fixed bug, then an unexpected race is occurring, so return a temporary error -EAGAIN instead.

This prevents callers such as __block_write_begin_int() from requesting a read into a buffer that is not mapped, which would cause the BUG_ON check for the BH_Mapped flag in submit_bh_wbc() to fail.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < 91e4c4595fae5e87069e44687ae879091783c183affected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < 32eaee72e96590a75445c8a6c7c1057673b47e07affected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < f0fe7ad5aff4f0fcf988913313c497de85f1e186affected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < ca581d237f3b8539c044205bb003de71d75d227caffected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < 192e9f9078c96be30b31c4b44d6294b24520fce5affected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < 0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44caffected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < 48d443d200237782dc82e6b60663ec414ef02e39affected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < 76ffbe911e2798c7296968f5fd72f7bf67207a8daffected
LinuxLinux1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b < 269cdf353b5bdd15f1a079671b0f889113865f20affected
LinuxLinux2.6.30affected
LinuxLinux0 < 2.6.30unaffected
LinuxLinux4.19.312 <= 4.19.*unaffected
LinuxLinux5.4.274 <= 5.4.*unaffected
LinuxLinux5.10.215 <= 5.10.*unaffected
LinuxLinux5.15.154 <= 5.15.*unaffected
LinuxLinux6.1.84 <= 6.1.*unaffected
LinuxLinux6.6.24 <= 6.6.*unaffected
LinuxLinux6.7.12 <= 6.7.*unaffected
LinuxLinux6.8.3 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References