CVE-2022-50333
In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbDiscardAG This should be applied to most URSAN bugs found recently by syzbot, by guarding the dbMount.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbDiscardAG This should be applied to most URSAN bugs found recently by syzbot, by guarding the dbMount. As syzbot feeding rubbish into the bmap descriptor.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.17% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0183c8f46ab5bcd0740f41c87f5141c6ca2bf1bbPatch
- https://git.kernel.org/stable/c/10b87da8fae79c7daf5eda6a9e4f1d31b85b4d92Patch
- https://git.kernel.org/stable/c/25e70c6162f207828dd405b432d8f2a98dbf7082Patch
- https://git.kernel.org/stable/c/3d340b684dcec5e34efc470227cd1c7d2df121adPatch
- https://git.kernel.org/stable/c/50163a115831ef4e6402db5a7ef487d1989d7249Patch
- https://git.kernel.org/stable/c/624843f1bac448150f6859999c72c4841c14a2e3Patch
- https://git.kernel.org/stable/c/911999b193735cd378517b6cd5fe585ee345d49cPatch
- https://git.kernel.org/stable/c/ab5cd3d62c2493eca3337e7d0178cc7bd819ca64Patch
- https://git.kernel.org/stable/c/f8d4d0bac603616e2fa4a3907e81ed13f8f3c380Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.