* CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters @ 2024-02-29 15:52 Lee Jones 2024-03-08 10:08 ` Michal Hocko 2024-03-08 10:26 ` Robert Frohl 0 siblings, 2 replies; 5+ messages in thread From: Lee Jones @ 2024-02-29 15:52 UTC (permalink / raw) To: linux-cve-announce; +Cc: Lee Jones Description =========== In the Linux kernel, the following vulnerability has been resolved: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters While switching to ref counters for track mtd devices use, the vmu-flash driver was forgotten. The reason for reading the ref counter seems debatable, but let's just fix the build for now. The Linux kernel CVE team has assigned CVE-2023-52496 to this issue. Affected and fixed versions =========================== Issue introduced in 6.6 with commit 19bfa9ebebb5 and fixed in 6.6.15 with commit 38c12f10990a Issue introduced in 6.6 with commit 19bfa9ebebb5 and fixed in 6.7.3 with commit 1168d6b79d2f Issue introduced in 6.6 with commit 19bfa9ebebb5 and fixed in 6.8-rc1 with commit a7d84a2e7663 Please see https://www.kernel.org or a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2023-52496 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/mtd/maps/vmu-flash.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/38c12f10990ad6e63ddef2f20c1b066e5e4d34fd https://git.kernel.org/stable/c/1168d6b79d2fafb41299fbc1b528e20644c562a5 https://git.kernel.org/stable/c/a7d84a2e7663bbe12394cc771107e04668ea313a ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters 2024-02-29 15:52 CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters Lee Jones @ 2024-03-08 10:08 ` Michal Hocko 2024-03-08 10:27 ` Greg KH 2024-03-08 10:26 ` Robert Frohl 1 sibling, 1 reply; 5+ messages in thread From: Michal Hocko @ 2024-03-08 10:08 UTC (permalink / raw) To: cve, linux-kernel; +Cc: Lee Jones On Thu 29-02-24 15:52:56, Lee Jones wrote: > Description > =========== > > In the Linux kernel, the following vulnerability has been resolved: > > mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters > > While switching to ref counters for track mtd devices use, the vmu-flash > driver was forgotten. The reason for reading the ref counter seems > debatable, but let's just fix the build for now. Do we really consider build fixes as CVE? -- Michal Hocko SUSE Labs ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters 2024-03-08 10:08 ` Michal Hocko @ 2024-03-08 10:27 ` Greg KH 0 siblings, 0 replies; 5+ messages in thread From: Greg KH @ 2024-03-08 10:27 UTC (permalink / raw) To: Michal Hocko; +Cc: cve, linux-kernel, Lee Jones On Fri, Mar 08, 2024 at 11:08:51AM +0100, Michal Hocko wrote: > On Thu 29-02-24 15:52:56, Lee Jones wrote: > > Description > > =========== > > > > In the Linux kernel, the following vulnerability has been resolved: > > > > mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters > > > > While switching to ref counters for track mtd devices use, the vmu-flash > > driver was forgotten. The reason for reading the ref counter seems > > debatable, but let's just fix the build for now. > > Do we really consider build fixes as CVE? Nope, good catch! We reviewed this one wrong, now revoked, thanks for the review. greg k-h ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters 2024-02-29 15:52 CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters Lee Jones 2024-03-08 10:08 ` Michal Hocko @ 2024-03-08 10:26 ` Robert Frohl 2024-03-08 16:02 ` Greg KH 1 sibling, 1 reply; 5+ messages in thread From: Robert Frohl @ 2024-03-08 10:26 UTC (permalink / raw) To: cve, linux-kernel, linux-cve-announce; +Cc: Lee Jones [-- Attachment #1.1.1: Type: text/plain, Size: 2552 bytes --] Hi all, > but let's just fix the build for now. Reads like it is only a build fix, does it really need a CVE ? Thanks, Robert On 29.02.24 16:52, Lee Jones wrote: > Description > =========== > > In the Linux kernel, the following vulnerability has been resolved: > > mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters > > While switching to ref counters for track mtd devices use, the vmu-flash > driver was forgotten. The reason for reading the ref counter seems > debatable, but let's just fix the build for now. > > The Linux kernel CVE team has assigned CVE-2023-52496 to this issue. > > > Affected and fixed versions > =========================== > > Issue introduced in 6.6 with commit 19bfa9ebebb5 and fixed in 6.6.15 with commit 38c12f10990a > Issue introduced in 6.6 with commit 19bfa9ebebb5 and fixed in 6.7.3 with commit 1168d6b79d2f > Issue introduced in 6.6 with commit 19bfa9ebebb5 and fixed in 6.8-rc1 with commit a7d84a2e7663 > > Please see https://www.kernel.org or a full list of currently supported > kernel versions by the kernel community. > > Unaffected versions might change over time as fixes are backported to > older supported kernel versions. The official CVE entry at > https://cve.org/CVERecord/?id=CVE-2023-52496 > will be updated if fixes are backported, please check that for the most > up to date information about this issue. > > > Affected files > ============== > > The file(s) affected by this issue are: > drivers/mtd/maps/vmu-flash.c > > > Mitigation > ========== > > The Linux kernel CVE team recommends that you update to the latest > stable kernel version for this, and many other bugfixes. Individual > changes are never tested alone, but rather are part of a larger kernel > release. Cherry-picking individual commits is not recommended or > supported by the Linux kernel community at all. If however, updating to > the latest release is impossible, the individual changes to resolve this > issue can be found at these commits: > https://git.kernel.org/stable/c/38c12f10990ad6e63ddef2f20c1b066e5e4d34fd > https://git.kernel.org/stable/c/1168d6b79d2fafb41299fbc1b528e20644c562a5 > https://git.kernel.org/stable/c/a7d84a2e7663bbe12394cc771107e04668ea313a > -- Security Engineer, SUSE Software Solutions Germany GmbH, Frankenstraße 146, 90461 Nürnberg, Germany, GF: Ivo Totev, Andrew McDonald, Werner Knoblich (HRB 36809, AG Nürnberg) GPG: D29F 82AA 9FD5 9D6E 74B1 6370 089E DB3D 230A 2404 [-- Attachment #1.1.2: OpenPGP public key --] [-- Type: application/pgp-keys, Size: 12035 bytes --] [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 840 bytes --] ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters 2024-03-08 10:26 ` Robert Frohl @ 2024-03-08 16:02 ` Greg KH 0 siblings, 0 replies; 5+ messages in thread From: Greg KH @ 2024-03-08 16:02 UTC (permalink / raw) To: Robert Frohl; +Cc: cve, linux-kernel, linux-cve-announce, Lee Jones On Fri, Mar 08, 2024 at 11:26:54AM +0100, Robert Frohl wrote: > Hi all, > > > but let's just fix the build for now. > > Reads like it is only a build fix, does it really need a CVE ? You're a bit late: https://lore.kernel.org/all/2024030813-subscribe-smasher-aeca@gregkh/ :) Already revoked, thanks for the review! greg k-h ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2024-03-08 16:02 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2024-02-29 15:52 CVE-2023-52496: mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters Lee Jones 2024-03-08 10:08 ` Michal Hocko 2024-03-08 10:27 ` Greg KH 2024-03-08 10:26 ` Robert Frohl 2024-03-08 16:02 ` Greg KH
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.